60s production in USSR

Interesting low-voltage direct-heated gazotron (tungar). This is one of the few Soviet two-anode gasotrons; the presence of two anodes in one cylinder allows the gasotron to be used in full-wave rectification circuits.

The anodes are flat, made of nickel. Directly heated cathode is made of thoriated molybdenum (molybdenum tape); filling - with argon as one of the cheapest inert gases. The cathode has no thermal screens. Leads from the cathode are metal plates attached to the base. The leads from the anodes pass through the side surface of the base.

The pressure in the device, due to the permissible low breakdown voltage, is selected within a few millimeters of mercury. This increases the service life of the devices, since high pressure protects the cathode from sputtering and makes the device less sensitive to gas absorption by its anode and walls.

The main purpose is to work in power supplies for cinema installations.

The old name is VG4.

Its developer was the Leningrad plant "Svetlana". Since 1943, production was transferred to the Moscow plant "Electrolamp"

Rated electrical data

Filament voltage 2.5 V

Filament current 11 A

Effective value of the maximum allowable voltage

step-up winding of power transformer 2 x 55 V

Amplitude of the reverse voltage at the anode 150 V

Amplitude of current in the anode circuit 9 A

Constant rectified voltage at the filter input,

starting with a 32 V choke

Average value of the constant component of the anode current 6 A

Ignition voltage 20 V

Voltage drop across the device 18 ... 20 V

Average service life 1000 h

Filament heating time 30 sec

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Shipping time - 10-30 days

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Thing will be securely packed.
Delivery from Ukraine by postal service.

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