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 ...

The circuit uses only one IC, the well-known LM317, a low-cost power-supply regulator. Using this chip, you can modulate the adjustment-pin input with the audio signal from an electret condenser ...

Most of the work that [Ron] has done in the past with vacuum tubes ... power tetrodes which are mostly used by major audio brands for their guitar amplifiers nowadays. The Dynaco 6V6 circuit ...

Design analysis of the K2-W Vacuum Tube ... 300-V DC power supply, while the second triode’s plate is connected to +300 V DC via a 220-kΩ load resistor. Also included in my schematic is the ...