Tube Audio Amplifiers Needn’t Be Complex. 25 Comments . by: Jenny List. ... It’s a conventional tube amplifier circuit in which the triode is a preamplifier for the pentode power ...

The schematic shows one channel of a stereo amplifier, and the power supply is sufficient for both channels. Transformer T2 supplies the voltages required for the vacuum tube plates. Selection of the ...

For the electronics enthusiast a tube audio amplifier makes for an interesting and unusual project, ... The tube circuit is a very conventional anode follower using an EF95 pentode.