Tube-number record
HF-150/211-H
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BrandAmperex
ClassTransmitting Tube
Base4-pin
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage1500 V
Plate Dissipation125 W
Grid 1 Voltage-400 V
Cathode Current210 mA
Audio Performance
Typical THD2%
Power Output30 W
Key Features
- Radiation Cooled
- Thoriated Tungsten Filament
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| A.F. Amplifier and Modulator—Class A | 1200 V | 4300 | — | 12.5 | 80 mA |
| R.F. Power Amplifier and Oscillator Class C—Telegraphy | 1500 V | — | — | — | 200 mA |
Application Notes
RF Power Amplifier or Oscillator, AF Power Amplifier or Modulator. Mounting Position: Vertical (base up or down), Horizontal (plane of electrodes vertical).
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