DIY EL34 Push Pull amp
Mark IV prototype which has been under test for about 2 months.
Specifications are:
Brimar 6059/CV4006 input pentode running as pentode (Industrial version of a 6BR7)
GE 6CG7/6FQ7 phase splitter as LTP with a 2SC2611 used as a constant current sink in the tail
Tung-Sol EL34 push pull output at ~450V with cathode bias (around 19-20W idle dissipation using zeners to tighten things up towards fixed bias)
Sowter UP-21 output transformers, VVT chokes & Primary Windings HT transformers.
DIY EL34 Push Pull amp
Mark IV prototype which has been under test for about 2 months.
Specifications are:
Brimar 6059/CV4006 input pentode running as pentode (Industrial version of a 6BR7)
GE 6CG7/6FQ7 phase splitter as LTP with a 2SC2611 used as a constant current sink in the tail
Tung-Sol EL34 push pull output at ~450V with cathode bias (around 19-20W idle dissipation using zeners to tighten things up towards fixed bias)
Sowter UP-21 output transformers, VVT chokes & Primary Windings HT transformers.