[Hammarlund] HQ-129-X BFO drift

[Richard Knoppow]

     The BFO in my HQ-129-X drifts a lot. This is thermal 
drift and is more than a khz from a cold start but it can 
drift that much after a half-hour warm up. I think this is 
too much and wonder if its typical.  If not something is 
wrong, maybe one of the mica caps in the circuit has gone 
bad. The values are not stated in the handbook but are in 
the RBG book. Since the circuits are almost identical I 
expect the cap values are the same or very close, does 
anyone know for certain?  If anyone else has experienced 
this drift and found a cure I would be glad to know it.


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com