Tube-number record
TA 3/500
0 archive entries
TA 3/500 is a tube type in the TubeDatabase archive (class: Transmitting Triode). Recorded specifications: brand Philips, construction Triode, socket 3-pin / Peewee, 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 Triode
Base3-pin / Peewee
Construction
Primary TypeTriode
EnvelopeGlass
Filament / Heater
Absolute Maximum Ratings
Plate Voltage4000 V
Plate Dissipation400 W
Audio Performance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Telegraphy | 4000 V | 3000 | 13500 | 40 | 125 mA |
Application Notes
At an anode voltage of 3000V, high useful power is achieved. For wavelengths above 150 meters, plate voltage can be increased to 3500V or 4000V depending on dissipation limits.
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