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 followers—from which this preamp gets its CF designate. According to AVA, ...

Having a second 12au7, I built a second Valve Caster circuit and ran the output of the first into it to see if I could get more overdrive. It worked but not as well ...... Tags: vacuum tube valve v...

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...

The Audio by Van Alstine FET Valve CF Vacuum Tube preamplifier is a pure analog design with no solid state transistors in the signal path. ... It means that your preamp circuitry is operating well ...