Tube-number record
7554
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BrandRCA
ClassHigh-Mu Triode
BaseCoaxial
Filament6.3 V @ 225 mA
Construction
Primary TypeTriode
EnvelopeCeramic-Metal Pencil
Base MaterialMetal
SectionsSingle
Filament / Heater
Heater NotesUnipotential Cathode
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation2.5 W
Grid 1 Voltage-50 V
Cathode Current25 mA
H-C Voltage50 V
Audio Performance
Key Features
- Ceramic-Metal Pencil Type
- Fast Warm-up Time
- Sturdy Coaxial-electrode structure
- High-Mu
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Amplifier | 125 V | 16000 | — | 70 | 14 mA |
| Class C Oscillator 500 Mc | 205 V | — | — | — | 21 mA |
Application Notes
For use at frequencies up to 5000 Mc in cathode-drive circuits under severe shock and vibration.
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