Tube-number record
3R/252E
0 archive entries
3R/252E is a tube type in the TubeDatabase archive (class: Industrial Triode). Recorded specifications: brand STC, construction Triode, maximum plate voltage 13000 V, and maximum plate dissipation 24000 W. The archive does not yet hold a photographed example of this type.
BrandSTC
ClassIndustrial Triode
Construction
Primary TypeTriode
EnvelopeIntegral Water Jacket
Sections1
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage13000 V
Plate Dissipation24000 W
Grid 1 Voltage-1500 V
Cathode Current6000 mA
Audio Performance
Key Features
- Water-cooled
- Integral water jacket
- High mutual conductance
- High efficiency
- Thoriated tungsten filament
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class C Industrial Heating Oscillator | 12000 V | 60000 | — | 24 | 5000 mA |
Application Notes
Specifically designed for industrial heating applications. Capable of operation at frequencies up to 100 Mc/s. Large safety factor for variable-load conditions.
0 results