Russian 6G7 Svetlana double diode-triode tube. Equivalent to the 6Q7. Made by Svetlana factory, USSR.
Name: 6G7;
Type: double diode-triode;
Application: detection and amplification LF voltage;
Cathode type: oxide, indirect heating;
Envelope: metal;
Mass, g: 45;
Filament voltage, V: 6,3;
Filament current, A: 0,275-0,325;
Anode voltage, V: 250;
Anode current, A: triode-0,0014 / diode-0,0008;
Anode power, W: 1;
Grid1 voltage, V: minus 3;
Steepness, mA/V: 1,0-1,6;
Microphonic noise, mV: 150;
Gain: 55-85;
Socket type: rsh5-1.