Tube-number record
RS 723
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BrandTELEFUNKEN
ClassAir-cooled 40 kW Triode
Construction
Primary TypeTriode
EnvelopeGlass/Metal
Sections1
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage12000 V
Plate Dissipation25000 W
Grid 1 Voltage-800 V
Cathode Current12000 mA
Audio Performance
Key Features
- Luftgekühlte
- Scheibenförmige Gitterdurchführung
- Directly heated
- Thoriated tungsten cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| HF-Verstarkung, B-Betrieb | 10000 V | 30000 | — | 52 | 5150 mA |
| HF-Verstarkung, C-Betrieb | 11000 V | 30000 | — | 52 | 4750 mA |
Application Notes
Designed for MW and KW transmitters and industrial generators. Minimum protection resistance of 25 Ohms required. Vertical mounting with heater connections facing upwards.
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