Service Manuals, User Guides, Schematic Diagrams or docs for : Agilent journals 1957-02

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                                                               HEWLETT-PACKARD


                                               JOURNAL
                                               TECHNICAL INFORMATION FROM THE -dp- LABORATORIES
                                                                                                                                                                      ^H
                                                                                                                                                                        Vol. 8 No. 6

5LISHED BY THE HEWLETT-PACKARD COMPANY, 275 PAGE MILL ROAD, PALO ALTO, CALIFORNIA                                                                               FEBRUARY, 1957




                A New 8-12 KMC Voltage -Tuned Sweep Oscillator
                        For Faster Microwave Evaluations
          ONE of the tools that has been needed in                                  advantage of being voltage tuned. Use of this
                  the microwave region has been a flexible                          tube also permits the instrument to be capable
          sweep oscillator. In addition to conventional                             of both amplitude and frequency modulation.
          uses, such an oscillator, when combined with                              These modulation capabilities further make
          the proper external components, has special                               the instrument suitable for forming into a
          value in the microwave region in that it per                              general-purpose swept or non-swept signal
          mits rapid wide-range evaluations to be made                              generator by use of an external calibrated at
          not only of reflection but of gain, attenuation,                          tenuator.
          and other network transfer characteristics as                                The flexibility of the new oscillator is in
          well.                                                                     dicated in detail by the controls provided on
             The new -hp- 8.2 - 12.4 kmc sweep oscillator                           the panel (Fig. 1). The main frequency dial
          shown in Fig. 1 has been designed for such ap                             is a large six-inch dial which is accurate within
          plications and to that end provides any amount                            a few percent. An 8: 1 rim drive vernier is pro
          of sweep width up to 4.2 kmc at a wide range                              vided for fine frequency adjustment.
          of sweep rates. A special feature of the sweep                               The sweep controls are located at the upper
          is that it is linear over the entire 8.2 - 12.4 kmc                       right of the panel. The upper control adjusts
          band. Output power is relatively high 

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