Ampera
EL12
Pentode · IHT · 8-pin Side Contact Y8A + Top Cap · 1938
“Telefunken Spezial. Klangfilm cinema 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 EL12 is a indirectly-heated pentode from Telefunken, introduced around 1938. Commonly used in power (se/pp) applications. Telefunken Spezial. Klangfilm cinema sound.
APPLICATIONS
Power output
Generic pentode power (se/pp) stage
HISTORY
Introduced1938ManufacturerTelefunkenEquivalentsNone direct
Pre-WarSPECIFICATIONS
Heater Voltage6.3V
Heater Current0.9A
Max Plate Voltage300V
Max Power18W
Sensitivity11 mA/V
Gain Factor—
Internal Impedance—
Pinout8-pin Side Contact Y8A + Top Cap
Era1938
RarityRare
Input Capacitance15pF
Miller Capacitance0.5pF
Output Capacitance8.5pF
SPICE model not yet available. Loadline calculator requires calibrated Koren parameters.