The GU-78B tetrode is used for power amplification in distributed amplifiers and single-sideband signal amplifiers at frequencies up to 250 MHz, in RF industrial engineering equipment. Tube is NEW, NOS and never used before!

Name: GU78B;

Type: tetrode;

Cathode type: oxide, indirect heating;

Application field: power amplification in distributed amplifier and amplification of SSB signals up to 1.5kW up to 75MH;

Brief application: amplification;

Envelope: metall-ceramic;

Cooling method: forced air;

Dimensions: 120mm x 111mm;

Mass: 1.8 kg;

Filament voltage: 27 V;

Filament current: 3.4 - 4 A;

Mutual conductance: 40 to 80 mA/V;

Output power: 2.5 kW;

Maximum anode voltage: 300V/6,2kV in peak;

Maximum operating frequency: 250MHz.