6524
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BrandRCA
ClassTwin Beam Power Tube
BaseMedium Button Septar 7-Pin
Filament6.3V @ 1.25mA
Construction
Primary TypeBeam Power
EnvelopeGlass
Base MaterialGlass
SectionsTwin
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Plate Voltage600 V
Plate Dissipation25 W
Grid 2 Voltage300 V
Grid 1 Voltage-200 V
Cathode Current150 mA
H-C Voltage135 V
Audio Performance
Power Output57 W
Key Features
- Twin units
- High frequency operation up to 470 MHz
- Beam power structure
- Unipotential cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| AF Power Amplifier Class AB1 CCS | 400V | 4500 | - | 8.5 | 25mA |
| AF Power Amplifier Class AB1 ICAS | 600V | - | - | - | 21mA |
| RF Power Amplifier Class C Telegraphy CCS | 500V | - | - | - | 120mA |
Application Notes
Free circulation of air around the tube is required. Forced-air cooling may be required for maximum ratings.
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