Tube-number record
F-134
0 archive entries
F-134 is a tube type in the TubeDatabase archive (class: Power Triode). Recorded specifications: brand Federal Telephone and Radio Corporation, year 1950, construction Triode, maximum plate voltage 20000 V, and maximum plate dissipation 150000 W. The archive does not yet hold a photographed example of this type.
BrandFederal Telephone and Radio Corporation
ClassPower Triode
Construction
Primary TypeTriode
EnvelopeGlass
Sections1
Filament / Heater
MaterialPure tungsten
Absolute Maximum Ratings
Plate Voltage20000 V
Plate Dissipation150000 W
Grid 1 Voltage-4000 V
Cathode Current120000 mA
Audio Performance
Power Output355000 W
Key Features
- Water-cooled anode
- Pure tungsten filament
- Forced air cooling for seals
- Capable of 150 kW dissipation
- Operates up to 22 megacycles
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class B Audio (Max Signal) | 14000 V | — | — | 21 | 17200 mA |
| Class C Telephony (Carrier) | 14000 V | — | — | 21 | 11800 mA |
| Class C Telegraphy | 19000 V | — | — | 21 |
Application Notes
Water and air cooling should continue for 5 minutes after removal of power. Air pressure of 6 psi required for grid air ring.
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