4T22
0 Tubes in archive
BrandHitachi
ClassIndustrial Transmitting Tube
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage3000 V
Plate Dissipation150 W
Audio Performance
Power Output708 W
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class B Audio (2 tubes) | 2500V | - | - | - | 360mA |
| Class C Telegraphy | 2500V | - | - | - | 209mA |
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