[Hammarlund] BFO trouble with an Sp600

[Les Locklear]

Make sure you correctly re-installed the shaft and indexed the shaft stop 
pin............a common mistake when re-assembling the bfo shaft/coupler.

Les Locklear
Monitoring Since '57
Located On the Gulf of Mexico
Gulfport, MS.
http://www.hammarlund.info/homepage.html

----- Original Message ----- 
From: "Chuck" <chuckkey at hotmail.com>
To: <hammarlund at mailman.qth.net>
Sent: Tuesday, November 01, 2005 10:50 AM
Subject: [Hammarlund] BFO trouble with an Sp600


> Hello all, I took the front panel off of a JX-21 to clean it as part of 
> the restoration. Upon putting it back on, now the BFO does not work very 
> well, it was fine before. On the plate of the 6C4 (V13) there is ample 
> signal (4V PP) with the switch on but the signal  going to the V12 buffer 
> grid is very low (around .75 volts and distorted). Anyone run into this 
> before? Could there be  something in the oscillator can that decided to go 
> bad? Does anyone know what the peak to peak signal level at the 6BA6 (V12) 
> pin 1 should be?
> Thanks
> Chuck
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