The G-811 triode is used as an oscillator in RF equipment. Equivalent to the 811A. NOS and never used before!
Name: G-811;
Type: triode;
Cathode type: oxide, indirect heating;
Brief application: oscillation;
Envelope: glass with base;
Cooling method: air;
Dimensions: 167mm x 62mm;
Mass: 100 g;
Filament voltage: 6.3 V;
Filament current: 3.75 - 4.25 A;
Gain coefficient: 144 to 176;
Output power: 40 W;
Maximum anode voltage: 5 kV;
Maximum operating frequency: 110 MHz.