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previous: Benjamin Fargen Damn Bob!!!!!What k... -- 12/15/1999 7:42 PM	View Thread

Re: Me too, what power tranny?

12/15/1999 10:40 PM
Bob A DynaQamps	Re: Me too, what power tranny? Benjamin, I'm running the tubes at about 40 ma. each. Your figures are about right for idle current. The issue that I don't here about is the current draw while in use and under high demand. English amps usually have larger transformers than Fender's and seem to run cooler. I've tried a Thordason 120ma. trans on that design and it gets pretty hot. When it'the "cranked up mode" this amp was drawing 148 ma. I'm not comfortable with this design without a least a little head room. Say, 160-180ma. My plate voltage is about 350vdc with current @ 37 ma. Idle current is around 90 ma. But when you gas it, it draws up to 150 ma. Now I don't know about you but I like to play my amp big and bad so you need a larger trans. Playing safe; Bob @ DynaQamps

12/15/1999 10:40 PM

Bob A DynaQamps
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Re: Me too, what power tranny?

Benjamin, I'm running the tubes at about 40 ma. each. Your figures are about right for idle current. The issue that I don't here about is the current draw while in use and under high demand. English amps usually have larger transformers than Fender's and seem to run cooler. I've tried a Thordason 120ma. trans on that design and it gets pretty hot. When it'the "cranked up mode" this amp was drawing 148 ma. I'm not comfortable with this design without a least a little head room. Say, 160-180ma.

My plate voltage is about 350vdc with current @ 37 ma. Idle current is around 90 ma. But when you gas it, it draws up to 150 ma. Now I don't know about you but I like to play my amp big and bad so you need a larger trans.

Playing safe;

Bob @ DynaQamps

Replies:

Benjamin Fargen Bob, Smart thin... -- 12/15/1999 11:26 PM