Electroserf Vacuum Tube Synthesizer Modules

video upload by epeasant

"Introduction to The Electronic Peasant's Electroserf synthesizer modules, based on Russian 1J24b vacuum tubes from the cold war days. These subminiature pentode tubes were used in the early MiG jet fighter radios, at a time when the western world had already changed over to solid state electronics.

These tubes are long obsolete, but available in the surplus market. Their small size, low voltage requirements, and low power heaters make them suitable for synthesizer use, while their low power output, gain and directly-heated cathodes bring their own design challenges."