[ARC5] Odd Crystal Oven

Robert Eleazer releazer at earthlink.net
Tue Jun 7 16:31:21 EDT 2016


I was working on my SG-297 signal generator yesterday, in preparation for using it to test a PRC-77 I bought.  I found the calibrator was not working and discovered something I think unusual.  

The 1 MHZ oscillator module does not only use a crystal oven, the whole oscillator is in the oven.  And that sucker gets hot, too!  I wonder if baking a 2N706 transistor and its related components like that is a good idea?  Anyway, I have never seen this done before.

I ordered a 1 MHZ oscillator module and I'm going to try to replace the original with that.

Wayne
WB5WSV        
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