Tube-number record
5604-A
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BrandRCA
ClassPower Triode
BaseSpecial / none
Construction
Primary TypeTriode
EnvelopeMetal-Glass
Base MaterialIntegrated Radiator
Sections1
Filament / Heater
MaterialMultistrand Tungsten
Absolute Maximum Ratings
Plate Voltage12500 V
Plate Dissipation10000 W
Grid 1 Voltage-2000 V
Cathode Current11500 mA
Audio Performance
Power Output36000 W
Key Features
- Forced-air cooled
- Integral radiator
- Multistrand tungsten filament
- High power output up to 50 Mc
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Power Amplifier & Oscillator--Class C Telegraphy | 12000 V | — | — | 20 | 2500 mA |
| AF Power Amplifier & Modulator--Class B (2 tubes) | 12000 V | — | — | 20 | 4500 mA |
Application Notes
The filament current must never exceed 270 amperes, even momentarily. Air flow must be adequate to limit the temperature of the radiator to its specified maximum value. Above 15 Mc, additional air flow directed onto the filament end is required.
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