Tube-number record
GM-1P
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GM-1P is a tube type in the TubeDatabase archive (class: Power Modulator Triode). Recorded specifications: construction Triode, maximum plate voltage 6000 V, and maximum plate dissipation 35000 W. The archive does not yet hold a photographed example of this type.
ClassPower Modulator Triode
Construction
Primary TypeTriode
Envelopeglass-to-metal
Sections1
Filament / Heater
Materialcarbonized thoriated tungsten
Absolute Maximum Ratings
Plate Voltage6000 V
Plate Dissipation35000 W
Grid 1 Voltage-2000 V
Audio Performance
Key Features
- Forced evaporation cooling for anode
- Air cooling for stem
- No-distortion performance
- Cathode-coupled compatible
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Basic Data | 3000 V | 27000 | — | 4.2 | 6000 mA |
| Test Conditions | 4000 V | — | — | — | 26000 mA |
Application Notes
Used in low-frequency no-distortion cathode-coupled amplifier circuits in stationary general-purpose RF equipment.
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