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27th November 2010, 07:51 PM
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diyAudio Member
Join Date: Jul 2008
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converting a dynaco mark IV driver board for headphone amp use
Ok, heres my second attempt to get some ideas for a PCB to make a few tube headphone amps as xmas give aways. So far, I'm not able to find a PCB for a pentode based headphone amp using 6au6's thru el84's. So my next best thought is to convert a readily available board. So I'm looking at the Mark IV board. I think the basic board has a enough drive to power a small transformer to power some headphones. The mark iv board is dirt cheap. Something like 18 buck bare bone, and 30 fully populated. Ideas?
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