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

[Bob kb8tq]

Hi

There is a General Radio list 

GenRad at groups.io <mailto:GenRad at groups.io>

That would be a pretty good bet for finding the various connectors. 

I last saw (and unfortunately did not buy) one of these beasts back 
in 1973. I can’t say I dug very deep into it on the dealer’s floor. From
what little I remember, you best bet on the oscillator may be to wire
it back as close to the original schematics as you can. 

Next bit of fun is going to be finding working versions of the ocean
of tubes it uses …..

Bob

> On Aug 23, 2021, at 9:15 AM, Stijn <pe1rks at xs4all.nl> wrote:
> 
> Seems that the pictures got scrubbed:
> 
> Links:
> 
> The equipment I am working on:
> https://www.pe1rks.nl/plaatjes/GR_1105A/IMG_0030.JPG
> 
> The GR 774 connectors that I am after:
> https://www.pe1rks.nl/plaatjes/GR_1105A/IMG_0115.JPG
> 
> The mains connectors that I am looking for need to fit these:
> https://www.pe1rks.nl/plaatjes/GR_1105A/IMG_0116.JPG
> 
> The oscillator module that I would like to replace:
> 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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