Tube-number record
ML-DP20
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BrandMachlett
ClassHigh-Mu Triode
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
Materialthoriated-tungsten
Absolute Maximum Ratings
Plate Voltage90000 V
Plate Dissipation1600 W
Grid 1 Voltage-1500 V
Cathode Current35000 mA
Audio Performance
Power Output2200000 W
Key Features
- Hard-tube pulse modulator switch tube
- Stress-free thoriated-tungsten filaments
- Oil convection cooling
- High-mu design
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pulse Modulator | 80000 V | — | — | 200 | 30000 mA |
Application Notes
Designed primarily to operate as a switch tube in hard-tube pulse modulators for radar and similar applications. Operation in oil or equivalent dielectric liquid is required for utilization of the maximum plate voltage rating.
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