[Collins] help needed

[Glen Zook]

Check the tone oscillator, a 6U8.  There has to be a tone present before you can tune the transmitter or to send CW.

Replace the tube, if bad, only with a 6U8.  Although the 6EA8 can be used to replace the other 6U8 tubes, the tone oscillator often will not work properly if a 6EA8 is substituted.
 
Glen, K9STH Website:  http://k9sth.com


________________________________
 From: "drleborgne at aol.com" <drleborgne at aol.com>
To: collins at mailman.qth.net 
Sent: Sunday, January 29, 2012 9:25 AM
Subject: [Collins] help needed
 

Dear collins aficionados: I am in the process of recondicion a 32-S1 ( I am no expert)  Voltage, resistance and signal 

tracing are Ok and adequate signal gets to the grids of , power tubes, but can not obtain grid meter excitation  nor

can I get power out, I have changed a burned resistor, and measurements and close inspection look good.

What could be hiding there, what should I look for ?. Thank you.    KI4JRY   martin
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