Tube-number record
RS 1828
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RS 1828 is a tube type in the TubeDatabase archive (class: Transmitter Triode). Recorded specifications: brand Siemens, year 1996, construction Triode, maximum plate voltage 12000 V, and maximum plate dissipation 250000 W. The archive does not yet hold a photographed example of this type.
BrandSiemens
ClassTransmitter Triode
Construction
Primary TypeTriode
Envelopemetal-ceramic
Sections1
Filament / Heater
Materialthoriated tungsten
Absolute Maximum Ratings
Plate Voltage12000 V
Plate Dissipation250000 W
Grid 1 Voltage-800 V
Cathode Current70000 mA
Audio Performance
Key Features
- Vapor-cooled
- Integrated boiler
- Directly heated
- Coaxial construction
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Grounded cathode circuit | 11500 V | 250000 | — | 100 | 40000 mA |
| Grounded grid circuit | 11500 V | 250000 | — | 100 | 40000 mA |
Application Notes
Suitable for broadcast transmitters up to 350 kW medium and short wave. Requires vertical mounting with anode up.
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