Tube-number record
TRANSMITTER TRIODE
0 archive entries
BrandSiemens
ClassPower Triode
BaseCoaxial
Construction
Primary TypeTriode
EnvelopeGlass-Metal
Base MaterialMetal
Sections1
Filament / Heater
Materialthoriated tungsten
Absolute Maximum Ratings
Plate Voltage15000 V
Plate Dissipation45000 W
Grid 1 Voltage-1000 V
Cathode Current8000 mA
Audio Performance
Power Output80000 W
Key Features
- Vapor-cooled
- Coaxial grid lead-through
- Thoriated tungsten cathode
- Suitable for RF amplifiers and modulators
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF amplifier, class B, grounded cathode | 12000 V | 35000 | — | 45 | 5150 mA |
| RF amplifier, class C, grounded cathode | 12000 V | 35000 | — | 45 | 4600 mA |
| AF amplifier, class B, push-pull (2 tubes) | 10000 V | — | — | — |
Application Notes
When used as RF amplifier, the tube can be operated at 15 kV up to 10 MHz and at 12 kV up to 30 MHz. Axis must be vertical, anode down.
0 results