304TH
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BrandEitel-McCullough, Inc. (Eimac)
ClassMedium-Mu Triode
BaseSpecial 4 pin, No. 5000B
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage3000 V
Plate Dissipation300 W
Cathode Current900 mA
Audio Performance
Power Output1400 W
Key Features
- Thoriated tungsten filament
- Medium-mu
- High power oscillator
- Class B Modulator
- RF Amplifier
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class B Audio (2 tubes) | 3000V | 16700 | - | 20 | 667mA |
| Class C Telegraphy | 3000V | 16700 | - | 20 | 500mA |
Application Notes
Averaged over any sinusoidal audio frequency cycle. Frequency for maximum ratings is 40 mc.
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