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grouding - the horse isn't dead yet

Hi All, I hope it doesnt look like Im beading a dead horse, I think it is still kicking. Anyway, old cliches aside, id like to get......

Output Stage & calculating halfboost freq. can you doublecheck my results?

Can you double check my results Im calculating the halfboost frequency for a given cathode bypass capacitor value in an output stage. Most of the......

Why would you do this? (6EU7, 12AX7, Bogen)

Hi, a friend dropped off a Bogen CHB-35A last week to see if I might be able to make something more useful to him out of it. No problem, its a......

Amp power supply questions.

Hi Guys, long time since Ive posted but I hope you may be able to advise me. Im building an amp using a kit I bought that uses the LM3876T chip.......

filter cap question

Im building another Deluxe Reverb from a DRRI platform. The AB763 has two 16uF/450v caps in parallel before the standby switch. Is there an argument......

hacking kit JTM45 bias circuit

Id like to put the ability in to adjust bias individually on each output tube. Not sure Im on the right track. I think I need to increase the......