Tube-number record
111-H
0 archive entries
111-H is a tube type in the TubeDatabase archive (class: Transmitting Tube). Recorded specifications: brand Amperex, construction Triode, socket 4-pin, maximum plate voltage 1750 V, and maximum plate dissipation 85 W. The archive does not yet hold a photographed example of this type.
BrandAmperex
ClassTransmitting Tube
Base4-pin
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage1750 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class B Audio Amplifier (2 tubes) | 1750 V | 4200 | — | 23 | 270 mA |
| R.F. Power Amplifier Class C Telegraphy | 1500 V | 4200 | — | — | 150 mA |
| Plate Modulated R.F. Power Amplifier Class C | 1250 V | — | — | — |
Application Notes
Designed for R.F. Power Amplifier and Oscillator, and Class B Audio Amplifier or Modulator applications.
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