Ampera
EL39
Pentode · IHT · Octal · 1952
“Cinema power pentode. Pedigreed Philips sound.”
Power pentode delivering up to 18W in pentode, UL, or triode mode
TRANSCONDUCTANCE0mA/V
Cgk0pF
Cgp0pF
Cpk0pF
GAIN0%
POWER45%
DRIVE50%
LINEARITY75%
EXECUTIVE SUMMARY
The EL39 is a indirectly-heated pentode from Philips, introduced around 1952. Commonly used in power (se/pp) applications. Cinema power pentode. Pedigreed Philips sound.
APPLICATIONS
Power output
Generic pentode power (se/pp) stage
HISTORY
Introduced1952ManufacturerPhilipsEquivalents4654K
Golden AgeSPECIFICATIONS
Heater Voltage6.3V
Heater Current0.9A
Max Plate Voltage400V
Max Power18W
Sensitivity6 mA/V
Gain Factor—
Internal Impedance—
PinoutOctal
Era1952
RarityRare
Input Capacitance12pF
Miller Capacitance0.4pF
Output Capacitance7.5pF
SPICE model not yet available. Loadline calculator requires calibrated Koren parameters.