6H7C
1 Tube in archive
ClassDouble triode
BaseOctal
Filament6.3V @ 810mA
Construction
Primary Typetriode
Envelopeglass
Sectionsdouble
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation5.5 W
H-C Voltage100 V
Audio Performance
Power Output4.2 W
Key Features
- Glass bulb
- Indirectly heated cathode
- Oxide-coated cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Both triodes in parallel | 294V | 3400 | - | 35 | 65mA |
| Each triode | 300V | - | - | - | 17.5mA |
Application Notes
Designed for amplification of low-frequency power. Resistant to ambient temperature from -60 to +70°C and relative humidity of 95 to 98% at +40°C.
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