[time-nuts] Re: General Radio 1105-A Frequency Measuring Equipment, parts wanted.

[Robert LaJeunesse]

   The mains connector proper is readily available:
   https://www.ebay.com/itm/201639994813?chn=ps

   But the snap-on metal backshell is less available:
   https://www.etsy.com/listing/622498888/backshell-for-amphenol-78-and-86
   -series

   Shown here with back clamp:
   https://www.etsy.com/listing/621285791/back-shell-for-amphenol-78-serie
   s

   Also here "Amphenol Metal Backshell":
   https://www.surplussales.com/Tube-Sockets/TubeSkts-3.html

   Bob L.
   > Sent: Monday, August 23, 2021 at 9:15 AM
   > From: "Stijn" <pe1rks at xs4all.nl>
   > To: time-nuts at lists.febo.com
   > Subject: [time-nuts] Re: General Radio 1105-A Frequency Measuring
   Equipment, parts wanted.
   >
   > Seems that the pictures got scrubbed:
   >
   > Links:
   >
   > The equipment I am working on:
   > [1]https://www.pe1rks.nl/plaatjes/GR_1105A/IMG_0030.JPG
   >
   > The GR 774 connectors that I am after:
   > [2]https://www.pe1rks.nl/plaatjes/GR_1105A/IMG_0115.JPG
   >
   > The mains connectors that I am looking for need to fit these:
   > [3]https://www.pe1rks.nl/plaatjes/GR_1105A/IMG_0116.JPG
   >
   > The oscillator module that I would like to replace:
   > [4]https://www.pe1rks.nl/plaatjes/GR_1105A/IMG_0013.JPG
   >
   > Sincerely,
   >
   > Stijn
   >
   > Op 23-8-2021 om 15:04 schreef Stijn:
   > > Fellow Time-nuts,
   > >
   > > I have for some time a General Radio 1105-A and I have started to
   > > resurrect this two rack Frequency Standard combined with Frequency
   > > Measuring Equipment.
   > >
   > > There are some repairs to be made and some units require some more
   in
   > > depth restoration, but to be able to complete this task and get all
   > > working like it once should I need some parts.
   > >
   > > What I need are some General Radio 774 connectors, 8 to be exact:
   > >
   > > I am also in need for 6 of the connectors fitting this mains entry:
   > >
   > > And the worst part is the Piezo Oscillator, the Quartz bar is there
   and
   > > in good condition the oven is also working. But the oscillator
   circuit
   > > has been heavily modified.
   > >
   > > Instead of the original bridge circuit they have build a totally
   > > different oscillator and I can't get this to work.
   > >
   > >
   > > So here are my questions:
   > >
   > > Does anybody have or know a supplier for the needed connectors?
   > >
   > > Is there someone out there who has just the Oscillator module for
   the
   > > Piezo-Electric Oscillator and is willing to sell and ship this?
   > >
   > > Sincerely,
   > >
   > >
   > > Stijn Nestra
   > >
   > >
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References

   1. https://www.pe1rks.nl/plaatjes/GR_1105A/IMG_0030.JPG
   2. https://www.pe1rks.nl/plaatjes/GR_1105A/IMG_0115.JPG
   3. https://www.pe1rks.nl/plaatjes/GR_1105A/IMG_0116.JPG
   4. https://www.pe1rks.nl/plaatjes/GR_1105A/IMG_0013.JPG