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...

Each circuit of our test unit features two 12AT7 tubes supplementing the gain stages and two 12AU7 tubes acting as cathode followersfrom which this preamp gets its CF designate. According to AVA, t...

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...

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...

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

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


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


How It's Made Audio Vacuum Tubes SD 360p =KCK= x264


Audio Amplifier & Radio Valve (Vacuum Tube) Tester - unboxing