Tube-number record
3Q/260E
0 archive entries
ClassR.F. Triode
Construction
Primary TypeTriode
EnvelopeGlass and Metal (Water Cooled)
Base MaterialMetal Ring
SectionsSingle
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage10000 V
Plate Dissipation20000 W
Cathode Current35000 mA
Audio Performance
Key Features
- Single Ended
- Water Cooled
- Thoriated tungsten filament
- High power R.F. Triode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class B Telephony | 10000 V | 25000 | 1400 | 35 | 3000 mA |
| Class C Power Amplifier Anode subject to Modulation | 8000 V | — | — | — | 4000 mA |
| Class C Power Amplifier or Oscillator, Unmodulated | 10000 V | — | — | — |
Application Notes
Air cooling required when R.F. grid current exceeds 10 A per lead to be directed at grid seals through a fish-tail nozzle of 3” by 4” orifice not less than 10 cu ft/min.
0 results