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Re: WeCo 72A Frequency Meter

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  • s82917
    I have SD-59373-01. It s a large print measuring 27 X 56 . If someone wants a copy of it I can take it to Kinkos, make a copy and mail it, I only request
    Message 1 of 4 , Jul 23, 2013
      I have SD-59373-01. It's a large print measuring 27" X 56". If someone wants a copy of it I can take it to Kinkos, make a copy and mail it, I only request being reimbursed for the actual cost of doing so.






      --- In coldwarcomms@yahoogroups.com, Sam Etler <etler@...> wrote:
      >
      > This is useful as it shows that the J code for it is J64072A. That makes it
      > easy to discover that the BSP for it is 103-425-100. I don't have it but
      > someone might in their library. The schematic is SD-59373-01.
      >
      > sam
      >
      >
      > On Fri, Jul 19, 2013 at 2:21 PM, OZOB99 <ozob99@...> wrote:
      >
      > > I finally found a photo of this test set:
      > >
      > > http://casperarc.net/gallery/index.php/Mark/2013-03-15_16-52-11_363
      > >
      > >
      > >
      > > --- In coldwarcomms@yahoogroups.com, "ozob99" <ozob99@> wrote:
      > > >
      > > > I saw a reference to this test set recently & recall using it to
      > > > calibrate 1600/2000/2400/2600 signalling supply oscillators for SF
      > > > (single frequency)PSN & private line signalling, and SS(dual frequency
      > > > private line) signalling; also used to calibrate other VF tone supplies
      > > > in the CO.
      > > >
      > > > Two of the critical gov't networks using the 2600/2400 signalling tones
      > > > were COPAN/JCSAN(command post alerting network[USAF], and joint chiefs
      > > > of staff alerting network); and the GR(gov't ground to radio) circuits
      > > > from NEACP to NECPA(Silver Dollar to Zenith).
      > > >
      > > > This box had a precise reference oscillator and compared frequencies
      > > > displaying beat patterns(Lissajou Œs Figures)on a 2-3" CRT; adjusting
      > > > the frequency desired to a zero beat pattern.
      > > >
      > > > Once a year the box was sent to the Arlington,Va WeCo Distributing
      > > > House for calibration with a more precise frequency standard.We used an
      > > > expedited delivery & turnaround procedure called "Red Ball" internally.
      > > >
      > >
      > >
      > >
      > >
      > > ------------------------------------
      > >
      > > Yahoo! Groups Links
      > >
      > >
      > >
      > >
      >
      >
      > [Non-text portions of this message have been removed]
      >
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