Not a problem at all

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In Reply to: And what are they doing to a pair of KT88s to get 100 watts? posted by kyle on April 5, 2007 at 19:39:55:

B+ around 600VDC. 40% UL taps on a 4K5 output transformer. -75 volts of fixed bias on the control grids. Should be about 50 milliamps per tube (at idle) and give a 100 watts at around 2% THD. Not bad at all.
FWIW, you can get 100 watts out of a pair of EL34's.
Russ

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Follow Ups Full Thread

Topic - Now, this is what you call a speaker...! - Florey55 16:14:55 04/04/07 (7)

Dont like. "BIG IS GOOD" theory - toxicport.e 23:14:32 04/06/07 (0)

It really is overwhelming - Christopher Witmer 18:17:35 04/05/07 (0)

I like this one - footstony 18:07:23 04/04/07 (0)

Re: Now, this is what you call a speaker...! whats heat BTU from valve amps? (nt) - freddyi 16:25:27 04/04/07 (3)

And what are they doing to a pair of KT88s to get 100 watts? - kyle 19:39:55 04/05/07 (1)

Not a problem at all - Russ57 08:06:03 04/06/07 (0)

A tube roller's dream... - Don Bunce 23:48:13 04/04/07 (0)

Follow Ups

Not a problem at all - Russ57 08:06:03 04/06/07 (0)

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