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In Reply to: RE: Fisher console alert! posted by tesla on March 19, 2015 at 06:31:29
That Fisher is a SE amplifier design.
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The Fisher Philharmonic uses two dual pentode ELL80 tubes in push pull. One tube per channel. The tubes are pretty hard to come by.
I found one on the side of the road years ago.
John
with 3 watts/channel-
I thought that the OPT looked small....
Happy Listening
and if you read the datasheet correctly, output power for class AB push-pull is stated as 8.5 watts.
each pentode system in the envelope is similar to EL95 and similar to the pentode system of the ECL82.
when ELL80 is used single-ended, you'll end up with 2 x 3 watts from one envelope. grundig used it this way in their first portable stereo tape recorders.
the best - nicolas
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