Tube-number record
ML-LPT 50
0 archive entries
ML-LPT 50 is a tube type in the TubeDatabase archive (class: High-voltage high-mu switch triode). Recorded specifications: brand Machlett, construction Triode, maximum plate voltage 125000 V, and maximum plate dissipation 10000 W. The archive does not yet hold a photographed example of this type.
BrandMachlett
ClassHigh-voltage high-mu switch triode
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialCarburized thoriated tungsten
Absolute Maximum Ratings
Plate Voltage125000 V
Plate Dissipation10000 W
Grid 1 Voltage-1500 V
Cathode Current175000 mA
Audio Performance
Power Output10000000 W
Key Features
- High voltage switch tube
- Hard-tube pulse modulators
- Stress-free carburized thoriated tungsten filaments
- Encapsulated zirconium getter bands
- Forced oil cooling
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pulse Modulator | 110000 V | — | — | 135 | 100000 mA |
Application Notes
Designed primarily for use in hard-tube pulse modulators for radar. Operation in oil or equivalent dielectric fluid is required for maximum plate voltage ratings. DC plate voltage should be limited to 100 kV in high stored energy circuits.
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