MIKE'S AMPLIFIERS
Simple 22W Push-Pull Amplifier
70W Parallel Push-Pull Amplifier
Ben's Unnecessarily Complicated 6550 Power Amp
KT90 Parallel Push-Pull Triode Power Amp
The Less Complicated KT-90 Power Amp
HOT-1 MC Tube Phono Stage
13E1 based Steampunk Power Amp