Tube-number record
ML-5681
0 archive entries
ML-5681 is a tube type in the TubeDatabase archive (class: Triode). Recorded specifications: brand Machlett Laboratories, Inc., year 1962, construction Triode, base Copper, socket Coaxial, maximum plate voltage 15000 V, and maximum plate dissipation 75000 W. The archive does not yet hold a photographed example of this type.
BrandMachlett Laboratories, Inc.
ClassTriode
BaseCoaxial
Construction
Primary TypeTriode
EnvelopeGlass-to-metal seals
Base MaterialCopper
Sections1
Filament / Heater
MaterialThoriated-tungsten
Absolute Maximum Ratings
Plate Voltage15000 V
Plate Dissipation75000 W
Grid 1 Voltage-3200 V
Cathode Current12000 mA
Audio Performance
Key Features
- Coaxial-terminal
- Water and forced-air cooled
- Heavy-wall copper anode
- High-conductivity glass-to-metal seals
- Thoriated-tungsten filament
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class C Telegraphy (Grid-Drive) | 14000 V | — | — | 25 | 10500 mA |
| Class B Audio (Two Tubes) | 14000 V | — | — | 25 | 21400 mA |
Application Notes
The ML-5681 is a general-purpose, high-power triode designed for frequencies up to 110 MHz. Ideally suited for cavity operation and broad-band service in AM, FM, and TV broadcasting, particle accelerators, and induction heating.
0 results