[R-1051] Frequency standard module

[jan at skirrow.org]

At 11:25 AM 5/11/03, James A. (Andy) Moorer wrote:
>If someone sends me a copy, I'll scan it and put it on the web site. Sounds
>like a good thing to make available.

I'm curious ... what is the problem people are having with this module?

I ask, because I have six freq std modules - in three versions, and only 
two are what I would call serviceable. One or two 'sort of' work. They 
oscillate, but way off the correct frequency, but then will usually pop in 
after they warm up a bit. The others are dead - and the problem seems to be 
the crystal. These are an unusual cut, I don't know what the electrical 
specs are, and I don't know if they can be rehabilitated.

I have spent some time on the problem, but haven't been able to find any 
explanation, other than bum crystal. I've got on my (endless!) list of 
things to do to rebuild the circuit with a modern crystal style - has 
anyone tried this?

If anyone has a fix, I'd sure like to know!

Jan Skirrow, VE7DJX