This amp design uses a plate voltage of 12, although the 12AU7 can handle up to about 330. Since the 12AU7 is of the Twin Triode variety, one tube can be used to amplify both a left and ...

[Keri Szafir] is no exception, and she’s produced a stereo tube amp with a few modern features. Electrically it’s a relatively conventional single-ended design using a double triode and a ...

It utilized four EL34 output tubes, one GZ34/5AR4 rectifier ... have gone out of production). “The amp can be restored with its original design intact or, if one desires, it can be heavily ...

Self-taught boutique builder Charles Henry puts musicality first with his designs, winning fans including Grace Bowers and ...

EPC has used GaN transistors to create a high-power Class-D two-channel audio power amplifier design. Instantiated in evaluation kit EPC9192, it is capable of pushing 700W/channel into 4Ω (or 2Ω) or ...