[TenTec] 20 MHz reference oscillator crystals - Also a note to whoever keeps the repair archive

[Roger Stubbs]

Gary, 

I’ll take one, please.  Preferred payment option(s)?

Thanks,
Roger Stubbs- K7ROG
7235 N. Oleander Vista 
Tucson,  AZ. 85704

Sent from my iPhone

> On Jun 26, 2018, at 16:38, MadScientist1948 <dukeshifi at comcast.net> wrote:
> 
> For those who keep track of this sort of thing, I had purchased an Omni 6 with what appeared to be a CPU problem (gobbledegook on the display).
> 
> I was prepared to acquire yet another parts set…
> 
> What made me think it was worth tinkering with was the fact that the problem was thermal, with a time constant roughly that of the crystal oven.
> 
> I had some spare ovens so no worries there but this was certainly not the root cause of the problem.
> 
> I found that the 20 MHz reference went away as the oven heated up. 
> 
> I injected 20 MHz from my signal generator and all was well.
> 
> I found a bag of proper 20 MHz crystals on the auction site. They are perfect as a mechanical fit and they went into the circuit perfectly and I was able to calibrate dead-on to 20 MHz.
> 
> The radio now works perfectly.
> 
> Now I am left with a bag of about 39 of these crystals. If anyone needs one, drop me a line.
> 
> $10 shipped in CONUSA.
> 
> Gary
> 
> W0DVN
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