Tube-number record
TA 3/500K
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TA 3/500K is a tube type in the TubeDatabase archive (class: Transmitting Tube). Recorded specifications: brand Philips, construction Triode, maximum plate voltage 4000 V, and maximum plate dissipation 400 W. The archive does not yet hold a photographed example of this type.
BrandPhilips
ClassTransmitting Tube
Construction
Primary TypeTriode
EnvelopeGlass
Sections1
Filament / Heater
MaterialTungsten
Absolute Maximum Ratings
Plate Voltage4000 V
Plate Dissipation400 W
Audio Performance
Key Features
- Short wave
- High frequency
- Telegraphy operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Telegraphy (Normal) | 4000 V | 3000 | 13500 | 40 | 125 mA |
Application Notes
Special short-wave transmitting tube suitable for wavelengths down to 3 meters.
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