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K&K Audio / Lundahl Transformers Welcome! Need support, you got it. Or share youe ideas and experiences. |
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K&K Audio / Lundahl Transformers Welcome! Need support, you got it. Or share youe ideas and experiences. |
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In Reply to: Happy New Year and old projects, ressurected posted by raq on January 6, 2019 at 09:12:41:
Hi - I was sort of the alpha tester for this circuit. I'm using a very similar circuit to sink 300mA from 4 KT-120s operating class A triode PPP. While I haven't had a tube short, I have had an output tube arc. Scared the sh*t out of my cat who was next to the amp at the time. :D After it stopped arcing the amp continued to play music as if nothing had happened. If you use this circuit with both output tubes's cathodes connected without a bypass cap like I do you will loose a lot of output power (output restricted to class A). On the other hand, using a bypass cap will kind of negate the advantage of using a high impedance current source.
"It is better to remain silent and thought a fool, then speak and remove all doubt." A. Lincoln
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Follow Ups
- RE: Happy New Year and old projects, ressurected - JKT 01/22/1912:55:16 01/22/19 (0)
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