Inside a ECF80 vacuum tube
This is one of two valves used in old VHF TV tuners from the 1960's. Found this one had lost its vacuum so decided to take a look inside. This little valve actually forms a Triode and a Pentode assembly.
Видео Inside a ECF80 vacuum tube канала tuopeek
Видео Inside a ECF80 vacuum tube канала tuopeek
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