Ampera
6C33C(2 cath)
Triode · IHT · Special · 1970
“Monster OTL. MIG-25 regulator.”
High-power directly-heated triode for single-ended amplification
Datasheet ↗SPICE
GAIN FACTOR0
PLATE IMPEDANCE0Ω
TRANSCONDUCTANCE0mA/V
Cgk0pF
Cgp0pF
Cpk0pF
GAIN3%
POWER100%
DRIVE100%
LINEARITY95%
TYPICAL OPERATING POINT
EXECUTIVE SUMMARY
The 6C33C(2 cath) is a indirectly-heated triode from Russian, introduced around 1970. It provides a gain factor (μ) of 2.8 with 130Ω plate resistance. Commonly used in otl applications. Monster OTL. MIG-25 regulator.
APPLICATIONS
SET outputPush-pull outputHeadphone output
OTL amplifiersBAT VK-60
• Headphone amp• PA/public address
HISTORY
Introduced1970ManufacturerRussianEquivalentsNone
Late ProductionSPECIFICATIONS
Heater Voltage6.3V
Heater Current6.6A
Max Plate Voltage300V
Max Power60W
Sensitivity22 mA/V
Gain Factor2.8
Internal Impedance130Ω
PinoutSpecial
Era1970
RarityModerate
Input Capacitance12pF
Miller Capacitance2.2pF
Output Capacitance8pF