[AMRadio] Ranger Xtal Oscillator

Jack Schmidling jack at schmidling.com
Sat Nov 11 14:29:47 EST 2006

Rick Brashear wrote:
> Jack,
> You might check R7 and C23 to be sure they are in tolerance.  Swap the 
> two 6CL6 tubes (V3 and V4) with each other (or with known good ones) and 
> see if that helps. 

I tried new tubes but that didn't help.  I am going to put it back on 
the bench and check the other components.

However, as I am not interested in CW, wouldn't it make sense just to 
disable the keyer?

Also, the bias supply seems to be an after thought.  Does it have 
anything to with the keyer and why was it added?


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