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hammond_p40_b-3_c-3_toncab


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                                                                                                                                                                                           C17                                                     TO
                                                                                                                                                                                          680PF                   24-90PF                       "VOLUME"
                         R4          C2                                                                                                                                                                                                          TABLET
                                    39PF                                                                                                                              RADIO-PHONO
                        1.8M
                                                                                                                                                                                                                                                E           F
                                                                                                                                                                                   EXPRESSION                         C22
                                                                                                                                                                                   CONTROL
                         R5                                                    R9           C6                C15                         C16
                                                                                           30PF              51PF                         .033                                                                                      C23             C24
                        10M                                                   820K                                                                      C18         C20                                                                                                                                                                   G
                                                                                                                             145V                                                 60PF/SEC                            140V                                                                                             T3
                                                                                                                                                       220PF       220PF                                                                                             TONE
 NON-VIB                                                                                                                     12AX7A                                                                                    12AX7A       .033                                                                                                       TO TONE
                                                V1                                                                                                                                                                                                  82PF             R40                                                                  BN
 CHANNEL                R6                                                                                                  1 V4A                                                                                     6 V4B                                                               6                                                    CABINET
 INPUT      A                                                                                                                             R29
                        47K                    6AU6A                                                                                                                                                                                           R37                   .3M                          V3B
                                                                              C5                                    2                     330K                                                                7                   R36          270K                             7                 12BH7A
                                                                                                                                                                                          R34                                                                                                                                             G
                                                                              .01                                                                       R30           R32                                                         330K
                                     100PF          1                                                                                                                                     15M                                                       R39
                       R3             C3                                                  R10                R27        3                                                                                         8                                                                   8
                                                                                          3.9M                                                          1.8M          1.8M                             R35                                                                                12V
                       270K                                    5         130V                                1.8M                   +280                                                                                                            330K                                                      +290
                                                                                                                                                                                                       3.3M
                                           7                                                                                                                        R31           R33                                        +280                                        R41
                                                                                                                                                                                                                                               R38                                    1200              C26
                                                                                                                                                                    68K           68K                                                                                    100K
                                                                                                               +1.7 (V2)                                                                                  +1.7V (V2)                           390K                                   R42               30/25
                                                        62                R8
                                                                          470K
                 +1.7 (V2)                                                                                INPUT FROM
                                               C4             R7                                       VIBRATO SCANNER                D                              C19           C21                                                                                   C25
INPUT FROM                                                                                                                                                           .0022         .001                                                                                  .001
MATCHING XFMRS                                                                 +280                                                   C
THRU VIBRATO                                .33               2.2M                                              OUTPUT TO
TABLETS                                                                                                        VIBRATO LINE
                        4.7M         C7                                              C11                                1.0
                                                                                                                                                                                                            T7                                 TO HTRS                                                  R97
                         R13        24PF                                            .0047                                                                                                                                                                                      335V
                                                                                                                                                                                                "BL"                                                                                                                                           +205
                                                                                                                             C13      C35             R63                                                                                                                                               4500
                                                                                                                                      150PF           390K                                                                                                                                                                            R98
                        10M                 R15                               R18                                                                                    C35          R63                                                                                                                                   C60           7500
                         R14               2.7M                               10M        12BH7A                  R25                                                 390PF        390K                                                                                                                                 50/300
                                                                                                                                                       C33                                       117VAC
                                                                                            V3A        1                              C34                                                                                                                                             +290
                                                                                                                 100                                  .0033                                                                                                                                                                                    +37
 VIBRATO                                                                                                                                                                                         60 HZ                       1             4                                    R94
 CHANNEL                47K                                                                   2                                       .001                            C34         R62                                                                       900
 INPUT      B                                                                                                                                                                                                                6             3
                         R16                                                                                                                                          .001        220K                                                                      R91                                                                       R99
                                                        V2                                                                                                                                                                                 7    375V                           4.7K                                                   180
                                                                                                   3       +290                                                                                                                                                                                          +280
                                     100PF          1     6AU6A
                                                                           C12                                                                                        C33                       "GY"                              V8
                       270K           C8                                                                                                                  R62                                                                                                              R95                    R96                                          +33
                       R12                                                .0047                                                        C32                100K       .0022                                                       6X4                     C56
                                                               5                         R21                                          390PF                                                                                                             40/450
                                           7                                                            R22                                                                                                                                                                4.7K                   4.7K                      R100           R101
                                                                                         1M
                                                                                                        820                                                                                                                                                                                                                 2.7K           2.7K
                                                                          R19                                                                                                                                                                                             C57              C58                 C56
                                                        62                470K                                                                                       THESE COMPONENTS GO BETWEEN                                                                         40/400           30/350              10/350
                                                                                                       95V                                                           POINTS "P" AND "D" IN AO-28-1
           +1.7V                                                                                                                                                     AMPLIFIERS (WITH NO CODE
                                                               R20
                          30/25                               2.2M                                                                                                   LETTER ONLY) INSTEAD OF
                                           R17                                           R23            R24                                                          THOSE SHOWN AT LEFT
                               C9          1.2K                                          22K            22K
                                                                                                                                                                                                                                                                         TOP VIEW
                                                          C10
                                                          .33          +280                                                                                                                                                                                                                                                               T5
                                                                                                                                                                              P                                                                         C56                                        C9,C26
                                                                                                                                   12AU7A                                                                                                                            T3                            C59,C60
                                                                                              (* SEE NOTE)                                                                                                                                              C57
                                                                                                                                      V7A         1                                                                                                                                                                                               T4
                                                    C28                                                                                                                                                                                                 C58
                                     R48                                                               R52 *                                                                R61    SELECT FOR
                                                                                    T5                                                    2                                        CHANNEL BALANCE                                     T1
                                                                                                                                                                            39K    (MOUNTED ON "P" TERMINAL)                                                                        EXPRES-
                                     470K                              V5                              47K                                                                                                                                                                          SION
                                                    .047
                                                                        6C4                                         R53 *          *          3                                                                                                                                                                                                   T6
                                                                   1                                                           C32                             T6                                                                                                                   CONTROL
                                                                                                   C31              47K
                                    R47                                                                                         .0082                                                                                                                                V3                                                                   V7
                T4                                        6               +205                     .33                                                                                    +33                                                               V8                                       V4       V1       V2   V6       V5
                                                                                                                                                  +205
                                    47K             C29
       H                                                       7                                                                                                                                R60
                                                    100PF                                              R54 *                       +37        8                                                 30K
PERCUSSION                                                                                             47K
 CHANNEL                                                                                                                                  7                                                     PERCUSSION
 INPUT                                              C30                                                                                                                                         CUTOFF
                                                                R49                                                                  V7B                                                                                         GY BL BN           G   G   F    E   C     P                  D      A    B        L    N   K    M    J   H
                                                                2.2K                                                                       6                        R58
                                                                                                       V6                           12AU7A
                                                    25/25                                                                                                          4.7M
                                                                                                       6C4                                                                          N
                                    R50                                                                         1                                                   R57                   TO                                                                               SIDE VIEW
                                                                                                   7                                                                                      PERCUSSSION
                   J                                                                                                                                                                L     SWITCH
                                                                                                                             R55
       TO                           22                                                                     6                                                        1.5M                                                NOTE:
                                                                                                                             82K
   PERCUSSION
    SWITCH                                                                                                                                                                          M                                   R52,R53,R54,C32 IN                                                               MODEL B3, C3, RT3
                                R51
                                                                                                  25V                                                                                                                   AO-28-1 AMPLIFIERS
             K                                                                                                                                                                                                          (WITH NO CODE LETTER ONLY)
                                                                                                                                              R56                                                                                                                          Title
                                4.7K
                                                                                                                                                             +33                                                                                                                      PREAMPLIFIER TYPE AO-28
                                                                                                                                              22K                                                                                                                          Size Document Number                                                        REV
                                                                                                                                                                                                                                                                             B               --- --- ---                                               1.0
                                                                                                                                                                                                                                                                           Date:     April 20, 1995 Sheet     1 of                                       1
                                                                                                                                                                VIBRATO
                                                                                                                                                                GREAT              OFF                                                                                                                                                                                                                                    SOFT          VOLUME

     T1                        TYPICAL GROUP OF LOWER                       PEDAL     TYPICAL GROUP OF UPPER                                                                                                           R4           C2                                     R9
   MATCHING                    (GREAT) MANUAL DRAWBARS                     DRAWBARS   (SWELL) MANUAL DRAWBARS                         T2                                           ON                                                                                                           R10 - SELECT AT TEST                                                                                                  NORMAL
   TRANSFORMER                                                                                                                       MATCHING                                                                                                                                                   TO BALANCE CHANNELS
   (LOWER AND PEDAL)                                                                                                                 TRANSFORMER                VIBRATO                                               1.8M                                              820K
                                                                                                                                                                                                                                   39PF
                                                                                                                                     UPPER                      SWELL              OFF                                                                                                          R10
                                                                                                                                                                                                                                                                                                                                                                         C17                                                            E               F
                                                                                                                                                                                                                           R5                                                                   3.9M
                                                                                                                                                                                                                                                                                                                       R29                                              680PF                   24-90PF                                     C24
                                                                                                                                                                                   ON                                                                                                                  145V
                                                                                                                                                                 R2                                                        10M                                                                                                  +280V          RADIO-PHONO
                                                                                                                                                                                                                                                                        C5
                                                                                                                                                                          C1                            A                                     V1                      .01                                              330K                                                                                                                 82PF
                                                                                                                                                                                                                                                                                                                                                                                                  C22
                                                                                                                                                                 1M       470PF                                       R6                     6AU6
                                                                                                                                                                                                                                                           130V                          C8                                                                   EXPRESSION                                                 C23
                                                                                                                                                                                                                                                                                                            C16                                                                                                                    R37
                                                                                                                                                                                                                                  100PF       1        5                               30PF                                                                    CONTROL                                                   .033      270K
                                                                                                                                                                                                                     47K                                                                       C15         .033
                                                                                                                                                                                                                                                                      R8                                                                                60PF/SEC                                         140V                               R39                                                                 G
                                                                                                                                                                                                                   R3             C3                                  470K                                                                                                                                                                                                      285V             T3
                                                                                                                                                                                                                                                                                                                                C18             C20                                                       12AX7A                                        TONE
                                                                                                                                                                 R1                                                270K            7                                                      51PF                                                                                                                                                                                  V3B
                                                                                                                                                                 3.9M                                                                                                                                      1                   220PF           220PF                                                     6 V4B                              330K
                                                                                                                                                                                                                                                                                                                                                                                                                                                        R40                    6 12BH7A                         BN
                                                                                                                                                                                                                                                                                          R28                      V4A
                       6                                                                                                                                                                                                                                                                                                                                                                                              R36          R38
                                                                                                                                                                                                                                                  62                                            2                  12AX7                                                                    7                                                           300K
                               2         3                             5                                                                                                                                                                                                                                                                                                                                                           390K
                                                                                                                                                                                                                                                        R7                                                                                                                                                            330K                                         7
                                                                                                                                                                                                                                                                                         270K                                                                                                                                                                                                                   G
                                                                                                                                                                                                                                                  60V
                                                                                                                                                                                                                             +1.7V                                                                     3                        R30             R32                 R34                              8
                                                                                                                                                                                                                           (FROM V2)                2.2M                               R27                                                                                             R35                                                                                 8             +290V
                                                                                                                                                                                                                                                                                                                                                                    15M
                                                                                                                                                                                                                                                    C4       +280V                     1.8M                                                                                            3.3M
                                                                                                                                                                                                                                                                                                                                1.8M            1.8M                                                             +280V                                                         12V
                                                                                                                                                                                                                                                    .33                                                                                                                                                                                                 R41
                                                                                                                                                                                                                                                                                                  +1.7V
                                                                                                                                                                                                                                                                                                (FROM V2)                                                                                       +1.7V                                                   100K                 1200
                                                                                                                                                                                                                                                                                                                                                                                                (FROM V2)                                                                                  C26
                                                                                                                                                                              B                                C7
                                                                                                                                                                                                  R13                                                                                                                                          R31            R33                                                                                                            R42           30/25
                                                                                                                                                                                                                                        C11
                                                                                                                                                                                                                                                                                                                                               68K            68K
                                                                                                                                                                                                  4.7M              24PF
                                                                                                                                                                                                                                                                                                                                                                                                                                                            C25
                                                                                                                                                                                                                                               .0047
                                                                                                                                                                                                                                                                                                                                                                                                                                                            .001
                                                                                                                                                                                                  R14               R15                                       R25
                                                                                                                                                                                                                                                                                                                                                C19            C21
                                                                                                                                                                                                                                         +290V
                                     LOWER MANUAL BUSBARS                                                                     UPPER MANUAL                                                                                                                                                                                                      .0022          .001
                                                                                                                              PRESET PANEL                                                        10M               2.7M                                      100
                                                                                                                                                 8                                                                                                                          6    V3B
                                                                                                                                                                                                                       V2                     C12
                                                                                                                                                 7                                      R16                                                                                      12BH7
                                                                                                                                                 6                                                                    6AU6 130V                                   7
                                                                                                                                                 5                                                                    1   5
                                                                                                                                                 4                                    470K
                                                                                                                                                                                                                                             .0047                                             C13
                                                                                                                                                 3                                                    C8                                                                8
                                                                                                                                                 2                                  R12             .0001                                                                       100V
                                                                                                                                                 1                                  270K                      7                                              R21                                                        D
                                                                                                                                                 0                                                                                           R19             1M                                1.0
                                                                                                                                                                                                                                             470K                           R22
                                                                                                               LOWER MANUAL                                                                                                62                                                                           C
                                                                                                                                                                                                                                                                            820
                                                                                                               PRESET PANEL                                                                         R17                          R20
                                                                                                                                                                                                    1.2K                         2.2M                                                PERCUSSION
                               UPPER MANUAL                                                                                                                                                                   C9           60V                               95V                     SIGNAL
                               BUSBARS                                                                                                                                                                        30/25

                                                                                                                                                                                                                            C10     +280V                    R23            R24
                           6
                                    2            3                                                                                                                                                                          .33                              22K            22K

                                                                                                                                                                                     +1.7V                                                                                                                     VIBRATO
                                                                                                                                                                                  (TO V1,V4)
                                                                                      5                                                                                                                                                                                                                        SWITCH
  (GEN 49-91)
                                                                                                                                                                                                                                                                                                                       CLOSED                                       CLOSED                                CLOSED                            CLOSED
                91
                                                                                                                                                                                                                                                                                                                       IN V1,V2,V3                                  IN V1/C1                              IN V2/C2                          IN V3/C3
                                                                                                                                                                                                                                                                                         C35
                                                                                                                                                                                                                                                                           C34           150PF
                                                                                                                                                                                                                                                                                                                                    R44
                                                                                                                                                                                                                                                                                                                                      22K                                                                                                                                             SCANNER
                                                                                                                                                                                                                                                                       .001
                                                                                                                                                                                                                                                                                       R63
                                                                                                                                                                                                         200V                    R62                C32
                                                                                                                                                                                          V7A                                                                                          390K
                                                                                                                                                                                                                                 100K              390PF                C33
                                                                                                                                                                                         12AU7           1                                                            .0033
                                                                                                                                             C28
                                                                                                                                     R48                                      T5
                                                                                                                      T4                                                                      2
                                                                             1                                 H
                                                                                    PERCUSSION                                       470K                      V5                       +37V
                                                                                                                                             .047
                                                                                                                                     R47                        6C4                                  3                 T6
                                                                              OFF                                                                          1                                             +205
                                                                                                                                                                                                                                         7
                                             4                                                                                       47K         6                +205                      C31
  (GEN 44-48)                                                                 ON                      THIRD
                                                                                                                                            C29
                44                                                                                                                                                                                                                      R61
                                                                                                                                                       7                                                                                33K
                                                                                                                                                                                            .33      8
                                                                                                      SECOND                                100PF
                                                                                                                                                       85V
                                                                                                                                                                                              7
                                                                                                                                             C30
                                                                                                                                                        R49                                 V7B
                                                                                                                                                        2.2K                                             6                        +33V                                 3                                       5                                 7
                                                                                                                                                                                            12AU7                                                       1     2                           4                                     6                                   8            9          10           11      12       13       14         15                               16                 17            18
                                                                                                                                            25/25                                                            200V

                                                                                                                                                                                         R58                                                                                    L1               L2                     L3              L4              L5                L6         L7         L8        L9       L10      L11        L12      L13     L14            L15       L16       L17        L18
                                                                                                                                                                                                                  PERCUSSION            R60
                                                                                                               J       R50
                                                                                                                                                                                                                      CUTOFF            30K
                                                                                                                                                                                         4.7M
                                                                                                                        22                                                                                                                                                       R65             R67                    R69             R71             R73               R75
                                                                                                                                                                                         R57        L
  (GEN 1-43)                                                                                                                                                     V6                                                                                                              27K
                                                                                                                                                                 6C4                                                                                                                             56K                    39K             33K             18K               12K
                1                                                                                                                                                                        1.5M
                                                                                     



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