Manufacturing of triodes type T01 in PWL

Preparing glass-metal connectors (vacuum tight)

Preparing glass balls

Connecting with glass pipe (to pump)

painting symbols

constructing electrodes

Cleaning electrodes (in PER and alcohol)

closing electrodes in tubes

Connecting with vacuum pump, pumping to 10^-6 Torr, degasing by electron bombardment

Testing tubes and working aplication

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