38-12 Code 121 Tube Dilemma

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38-12 Code 121 Tube Dilemma

Buzz
Senior Member

Posts: 360
Threads: 60
Joined: Jan 2013
City: Portland, Oregon

07-24-2013, 04:11 PM

Hello Gang:
Here's my story. I bought a Philco model 38-12 Code 121. It didnt work, replaced some caps and got it working. While cleaning the tubes, I noticed that the schematic said the DET-OSC tube was a 6A7.
Mine had a 6A8. The tube had a sticker that said it was replaced in 1947! Those 2 tubes are not interchanagable, are they? Could this have been modified so a 6A8 would work? The under chassis looked untouched. I had a similar problem on my Zenith that I posted a few days ago. What can I look for under the chassis? Need some Philco Gurus help on this Icon_e_ugeek

.
Thanks, Buzz

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Messages In This Thread

38-12 Code 121 Tube Dilemma - by Buzz - 07-24-2013, 04:11 PM

RE: 38-12 Code 121 Tube Dilemma - by Ron Ramirez - 07-24-2013, 04:44 PM

RE: 38-12 Code 121 Tube Dilemma - by BrendaAnnD - 07-24-2013, 04:47 PM

RE: 38-12 Code 121 Tube Dilemma - by Ron Ramirez - 07-24-2013, 04:50 PM

RE: 38-12 Code 121 Tube Dilemma - by Buzz - 07-24-2013, 04:52 PM

RE: 38-12 Code 121 Tube Dilemma - by codefox1 - 07-24-2013, 08:08 PM

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