Vacuum-Tube Valves Circuits

  

Circuits




Power-supply voltage is provided by full wave diode rectification of 230 VAC by a magnetic transformer. This design provides a quality audio amplifier. Valve amplifier circuit diagram. Valve (Vacuu...

With four preamps in the current AVA lineup, I welcomed the opportunity to test its flagship, the Fet Valve CF hybrid preamplifier. Each circuit of our test unit features two 12AT7 tubes supplement...

Andreas is one of the brightest new lights in the firmament of vacuum tube circuit design, and I was particularly impressed with his New Valve Order Audio SPA-II (Stereo Phono Amplifier-II) that co...

I am speaking more of audio vacuum tube amps than I am of microwave amps like magnetrons, klystrons, TWTs and the like. ... This is a serious design book with details on audio circuit design, equat...

This project uses a very interesting mode of operation of the vacuum tube, "starved cathode". Instead of running the tubes at a few hundred volts on ... of "natural tube distortion" and some overdr...

It's always a pleasure for me to introduce to the readers of Positive Feedback Online a talented fine audio constructeur, this time Andreas Hadjiminas, working out of Nicosia, Cyprus. Andreas does ...


6V6 6J5 Class A Vacuum Tube (Valve) Power Amplifier Circuit


Vacuum Tubes (Valves): "Electronics at Work" 1943 Westinghouse 21min


Single Vacuum Tube Radio with Circuit Diagam (Operates on a 12v to 25v HT/LT ...


How Tube Amplifiers Work, Part 1: The Power Supply