[Collins] 32S-3B

[email protected] [email protected]
Sat, 23 Mar 2002 06:46:19 +0000


Thanks for all the help I received on the keying problem 
in my 32S-3B.

After changing out some of the tubes (do the easy things 
first) my problem seemed to get slightly worse.  I 
checked the two 68K, 2 watt resistors in parallel R89 
and R112 and they looked like they had been warm a time 
or two.  I replaced them, as one of you suggested.  
After firing up the transmitter following the resistor 
change, the problem had gotten worse.  Now the 
transmitter keys itself after warm up.

Upon checking the resistors, I noticed that they got 
pretty hot and I assume that is what caused the 
transmitter to key.  The original resistors are 68K at 2 
watt which is what I replaced them with.  Someone 
mentioned that Collins replaced them with a single 34K, 
7 watt unit.  Will this work, or is there a reason these 
resistors are getting so hot and changing value?  Should 
I be barking up another tree here and looking for 
another problem that causes too much current to flow 
through these resistors?

Thanks again for all the help.  You guys are great!!