SG3S ( СГ-3С) Voltage Regulator Tubes

Equivalents to the OC3 / VR105/30 

SG3S is a soviet voltage regulator tube and you can use it as a replacement for the OC3 and VR105/30 tubes. These tubes have "tubular bulb shape". The OC3 and VR105/30 do have figural shape, but for example OC3 Tungsram does also have a tubular bulb shape. 

The lot of 4 tubes

Same Date Code 08-1979

Tubes have "OTKmarkings on them

Gas filling: Argon-Neon
Stabilized voltage: 105 - 112V
Operating current: 5 - 40 mA

The tubes are never used. 


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