WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
Building, troubleshooting and testing of these amplifiers should only be
performed by someone who is thoroughly familiar with
the safety precautions around high voltages.
I have completed to make a Hybrid Amp using tube for
voltage amplifier and MOS FET SE (source follower) for
output. The measured results are shown in the attached
file.
Yes, I encounterd a big problem at MOSFET. It was cooling
problem. Finally, I used a forced air heatsink with heat pipe
scheme for Core Two Duo CPU. Before this heatsink, 6 MOSFET's
were destroyed.
