RE: I take it the KT-88 is cathode biased

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In Reply to: I take it the KT-88 is cathode biased posted by FenderLover on August 20, 2014 at 05:55:26:

Yes, cathode biased with a 450 ohm resistor bypassed with 100uF. There is 27 volts positive on the cathode for 60mA across the bias resistor. The KT88 is running just over 20 watts, and it is maxing out the output transformer to get a bit of OPT saturation. I have a 55v bias tap that I was going to play with, but maybe later.

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Follow Ups Full Thread

Topic - Guitar Amp Build - Chip647 16:35:41 08/19/14 (6)

Cool peanuts! - FenderLover 19:07:55 08/19/14 (5)

RE: Cool peanuts! - Chip647 04:57:05 08/20/14 (4)

"having one extra triode after the tone stack would be nice" - GSH 09:02:44 08/20/14 (1)

And maybe a cascode input... - Triode_Kingdom 10:48:32 08/20/14 (0)

I take it the KT-88 is cathode biased - FenderLover 05:55:26 08/20/14 (1)

RE: I take it the KT-88 is cathode biased - Chip647 06:55:38 08/20/14 (0)

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RE: I take it the KT-88 is cathode biased - Chip647 06:55:38 08/20/14 (0)

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