[AMRadio] SX-28 help
w5sum
w5sum at glowbugs.com
Mon Dec 29 11:34:18 EST 2003
Morning All
well I have dived headlong into my SX-28 restoration. The first order of
business was to try to get the wiring correct in the audio output stage. It
had a replacement audio output transformer, and the wiring to the headphone
jack was all wrong... end result was that there was NO audio available at the
speaker jacks on back and bad audio with headphones.
I had a parts unit here so I took the audio transformer out of it,and put it
in the one I'm restoring. I wired the headphone jack up correctly, and the
speaker jacks on back. I now have decent audio from the speaker terminals
with the factory speaker, and so so audio using a 8ohm headset at the
headphone jack.
HOWEVER, the 6L6's ( someone subbed out the 6V6's ) run scalding hot.. I
mean.. so hot you can smell them. I have changed EVERY component in the
audio section around the output tubes, and the 6SC7.
Anyone have any solutions to why these tubes are getting so hot?
thanks in advance
r
The "AM" voice of Shreveport, Louisiana USA
formerly WN5AIA and WB5AIA
I got my Extra Class the old fashioned way... I earned it!
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