Tube-number record
6C9D
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ClassHigh-frequency triode
BaseOctal
Filament6.3 V @ 575 mA
Construction
Primary TypeTriode
Envelopeglass
Sections1
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation5.5 W
Cathode Current25 mA
H-C Voltage100 V
Audio Performance
Power Output1 W
Key Features
- Disc seals
- Indirectly heated oxide-coated cathode
- Resistant to high humidity
- Power amplification at UHF
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Self-bias | 250 V | 10400 | — | 50 | 15 mA |
Application Notes
Designed for power amplification over a wave band from 33 cm. Resistant to ambient temperature from -60 to +70°C.
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