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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: RE: Or my wrong to say it LOL..Anyway I have been comparing it to one of my Hf50s. posted by Triode_Kingdom on September 14, 2016 at 08:14:29:
"There could be many reasons for that other than the 77s simply being better. Have you attempted to measure the performance difference between the two types? Was NFB readjusted to accommodate differences?"
That is very true and I seem to remember doing a sweep test with the EL34s where the distortion product broadened out in the higher frequency ranges.
There is a reason that this happened and part of that could be the fact that EL34s might not like being run in UL as they would in pure pentode.
I have also come to the conclusion that Peter Walker of Quad chose the KT66 kinkless Tetrode as opposed to the EL34 to power his new speakers for the reasons I had mentioned.He could have easily chosen the less expensive and easier to drive EL34 if he thought it would produce the detailed and open sound he wanted out of his ESL-57 speakers at the time.
Keep in mind that the EL34 was out at the same time that the KT66 was.
I'm going to once again measure the EL34s on the sweep analyzers and see what happens.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken
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Follow Ups
- RE: Or my wrong to say it LOL..Anyway I have been comparing it to one of my Hf50s. - Michael Samra 14:37:17 09/14/16 (0)
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