862-A
0 Tubes in archive
BrandRCA
ClassTransmitting Triode
BaseNo. 3908
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialTungsten
Absolute Maximum Ratings
Plate Voltage20000 V
Plate Dissipation100000 W
Grid 1 Voltage-3000 V
Cathode Current10000 mA
Audio Performance
Power Output90000 W
Key Features
- Water and forced-air cooled
- Tungsten filament
- Suitable for high power transmitters
- High amplification factor
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| A-F Power Amplifier & Modulator (Class B, 2 tubes) | 12000V | - | - | 45 | 13000mA |
| R-F Power Amplifier (Class B Telephony) | 18000V | - | - | - | 4200mA |
| Plate Modulated R-F Power Amplifier (Class C Telephony) | 12000V | - | - | - | 5000mA |
| R-F Power Amplifier & Oscillator (Class C Telegraphy) | 18000V | - | - | - | 8330mA |
Sort by
Showing 1 to 0 of 0 results