Ampera
GK71
Pentode · IHT · Special · 1960
“Russian transmitting pentode.”
Power pentode delivering up to 125W in pentode, UL, or triode mode
TRANSCONDUCTANCE0mA/V
Cgk0pF
Cgp0pF
Cpk0pF
GAIN0%
POWER100%
DRIVE50%
LINEARITY75%
EXECUTIVE SUMMARY
The GK71 is a indirectly-heated pentode from Russian, introduced around 1960. Commonly used in transmitting applications. Russian transmitting pentode.
APPLICATIONS
Power output
Generic pentode transmitting stage
• PA/public address
HISTORY
Introduced1960ManufacturerRussianEquivalentsNone
Late ProductionSPECIFICATIONS
Heater Voltage6.3V
Heater Current6.5A
Max Plate Voltage1000V
Max Power125W
Sensitivity8 mA/V
Gain Factor—
Internal Impedance—
PinoutSpecial
Era1960
RarityModerate
Input Capacitance18pF
Miller Capacitance0.2pF
Output Capacitance7pF
SPICE model not yet available. Loadline calculator requires calibrated Koren parameters.