Ampera
Siemens-Bi
Pentode · IHT · 9-pin Noval · 1958
“Rare Siemens industrial pentode.”
Power pentode delivering up to 12W in pentode, UL, or triode mode
TRANSCONDUCTANCE0mA/V
Cgk0pF
Cgp0pF
Cpk0pF
GAIN0%
POWER30%
DRIVE50%
LINEARITY75%
EXECUTIVE SUMMARY
The Siemens-Bi is a indirectly-heated pentode from Siemens, introduced around 1958. Commonly used in industrial / power applications. Rare Siemens industrial pentode.
APPLICATIONS
Power output
Generic pentode industrial / power stage
HISTORY
Introduced1958ManufacturerSiemensEquivalentsNone
Golden AgeSPECIFICATIONS
Heater Voltage6.3V
Heater Current0.9A
Max Plate Voltage300V
Max Power12W
Sensitivity15 mA/V
Gain Factor—
Internal Impedance—
Pinout9-pin Noval
Era1958
RarityCollector
Input Capacitance10pF
Miller Capacitance0.8pF
Output Capacitance8pF
SPICE model not yet available. Loadline calculator requires calibrated Koren parameters.