Tube-number record
12C3C
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BrandUSSR
ClassOscillator triode
BaseFlexible / flying leads
Filament12.6 V @ 300 mA
Construction
Primary TypeTriode
Envelopeglass
Base Materialglass
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation5 W
Grid 1 Voltage-250 V
Cathode Current30 mA
H-C Voltage100 V
Audio Performance
Power Output0.275 W
Key Features
- Microwave band operation
- Glass envelope
- Indirectly heated oxide-coated cathode
- Rigid leads
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Microwave Oscillator | 100 V | 3400 | — | 12.5 | 10 mA |
Application Notes
Intended for operation in the microwave band (decimeter waves). Resistant to ambient temperatures from -60 to +70C and humidity up to 98%.
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