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D D D
250K-A Treble
12AX7 V1a 10pF
100K
100K
100K
250pf 820
+180 v. .022 12AT7 V4a 6V6 V5 392v SW 5:
+180 v. +195 v.
Impedance
68K
3.3M 170v
Normal
12AX7 .001 1K 3W Select
220K
100K
V1b (4 or 8
1M-A Vol
1.5K
220K 5%
82K 5%
.1 Yellow: 8-
250K-A Bass
.1 390v ohms)
1 ohm 1W 5%
ohm
68K
Master 1
.1
1M
+1.5 v.
50K A
Note A
+1.5 v. 22K 470
47pF
Yellow+Grn: 4-ohm
1M
25- 25+
25- 25+
.022
1 ohm 1W 5%
1.5K
1.5K
220K 5%
100K 5%
1M
75 v
Black and
Up to 50K ohm can
10K-A
black+yellow
Mid
be sed for some boost .1 1K 3W Hammond
here 180v .1 1.5K 1608
47
220K
470K
12AX7 12AT7 V4b 6V6 V6
V3b
-36.5v
320v
500 pf
392v
D
272DX:
100K
.0047 +394 (5Y3).
+404 (5U4G) Notes on rectifiers:
320 V +392v. With a 272DX PT and the 1608, the
195 V
amp has plenty of presence. A stiff
12AT7 12AX7 +282 v. C rectifier (5U4G) can be a bit harsh. With
V2 100kL 10K 1W 10K 1W B Choke A a 5Y3, responsiveness is excellent and
Reverb Trans V3a D overdrive is round & musical.
20-500
+ +
20-500
20-500
+ In neither case was there much
Dwell
1M A
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