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Original Message
RE: CCS with Cathode Resistor in a long tail ?
Posted by KevinC on September 19, 2016 at 17:44:03:
I have adopted the Russian 6J49P pentode (triode connected) for a similar 2 stage PP amp kit (http://www.kandkaudio.com/power-amplifier/). The 6J49P and its similar relatives have somewhat higher gain (50) than the 6922 and are better able to cope with the higher voltage needed for tubes that have higher cathode bias voltages. I run the 6J49P at 14mA with a plate voltage of 190VDC. They impart an open, dynamic sound to the amplifier.