Tube-number record
2C54
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BrandRaytheon
ClassTwin Triode Power Amplifier
Base7-pin (non-miniature)
Filament6.3 V @ 800 mA
Construction
Primary TypeDual triode
EnvelopeST-14 Glass
Base MaterialPhenolic
Sections2
Filament / Heater
Heater NotesA-C or D-C
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation5 W
Cathode Current40 mA
Audio Performance
Power Output13 W
Key Features
- Twin triode
- Top cap plate connections
- High frequency operation up to 160 mc
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A (Triodes in parallel) | 300 V | 4200 | 10200 | 43 | 5 mA |
| Class B Power Amplifier | 300 V | — | — | — | 70 mA |
| R-F Power Amplifier Class C Push-Pull | 300 V | — | — | — | 80 mA |
Application Notes
At least 15 volts of fixed bias should be used with 300 volts on the plate to protect the tube in case of failure of oscillation. Plates will not show color at maximum rated dissipation.
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