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BrandRCA
ClassBeam Power Tube
BaseStandard Octal 8-Contact
Filament6.3V @ 1250mA
Construction
Primary TypeBeam Power
EnvelopeT12
Base MaterialMicanol
Sections1
Filament / Heater
Heater NotesUnipotential Cathode
Absolute Maximum Ratings
Plate Voltage3000 V
Grid 2 Voltage500 V
Grid 1 Voltage300 V
H-C Voltage135 V
Audio Performance
Key Features
- Severe Shock and Vibration Resistant
- 500-g Shock Tested
- Fatigue Tested
- Pulse-Modulator Service
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Static Characteristics | 200V | 7000 | - | 4.5 | 100mA |
| Rectangular-Wave Modulation | 3000V | - | - | - | 1500mA |
Application Notes
For tube protection, it is essential that sufficient resistance be used in the plate, grid-No.2, and grid-No.1 supply circuits so that short-circuit current is limited to 0.5 ampere in each circuit.
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