Tube-number record
TH 504
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BrandTHOMSON-CSF
ClassTransmitting Triode
BaseCoaxial
Construction
Primary TypeTriode
EnvelopeGlass
Base MaterialConcentric ceramic insulated
SectionsSingle
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage15000 V
Plate Dissipation150000 W
Grid 1 Voltage-1200 V
Cathode Current180000 mA
Audio Performance
Key Features
- Vapotron
- Transmitting Triode
- Vapor cooled radiator
- Concentric terminals
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class C Telegraphy | 15000 V | 130000 | — | 80 | 29300 mA |
| Class C Telephony (Carrier) | 12000 V | 130000 | — | 80 | 22000 mA |
| Class B AF Modulator (Per tube) | 12000 V | — | — | — |
Application Notes
Transmitting triode used as C.W. oscillator, AF or RF power amplifiers. Anode can dissipate 150 kW.
Datasheets
Datasheet: TH504.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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