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> New gm-70 GM70 845 triode copper plate 5 tubes 1970
New gm-70 GM70 845 triode copper plate 5 tubes 1970
Russian GM-70 GM70 TRIODES COPPER PLATE TUBES. NEW. Has similar characteristics as RCA845 Triode. Military equipment. Super new condition. Lot of 5 NEW!
The GM-70 triode is used as a low-frequency power amplifier in RF equipment.
Cathode: directly heated, carbonized tungsten.
Relative humidity at up to +25 C, %
Mutual conductance (at anode voltage 600 V, anode current 160-260 mA), mA/V
Gain coefficient (at anode voltage 1.2-1 kV, anode current 125 mA)
at grid voltage 175 V, at least
at grid voltage 200 V, at most
Interelectrode capacitance, pF:
Averaged Characteristic Curves:
Uf = 20V; anode voltage Uf is equal to grid voltage Ug;
Averaged Anode Characteristic Curves: Uf = 20V
