VK1SV valve home page
A single 6CL6 valve trasmitter: the first blood
A simple transmitter with valves
An audio amplifier using a 6J5 triode and an 807 PA in tetrode configuration
A 6AG7, 807 valve transmitter for 472 kHz
A grounded grid amplifier, based on a 3-500Z (14000 kHz)
A simple valve tester
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