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Old 12-29-2016, 09:26 PM
Captainclock Captainclock is offline
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Join Date: Dec 2013
Location: Elkhart, Indiana
Posts: 1,189
Quote:
Originally Posted by dieseljeep View Post
The radio is from the mid 50's and doesn't have AFC. If it did, it would have an AFC position on the band switch. Using that higher quality 12AT7 probably minimizes the drift and the best thing you could have done. Whoever subbed that tube with a 12AU7, just wanted to get the radio playing, as its a poor sub.
Yeah, I kind of figured as much, but wasn't sure. Anyways the 12AT7 tube I put into the radio was a Telefunken tube (which is of extremely high quality) which is probably why there's hardly any drifting of the FM dial, I have not been able to locate a service manual for this radio and because of that I have no idea what purpose each tube serves in the radio (the little tube placement guide on the bottom of the radio doesn't list what each tube does in the circuit for some reason.)
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