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ML-5681

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BrandMachlett Laboratories, Inc.
ClassTriode
BaseCoaxial-terminal

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

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class C Telegraphy (Grid-Drive)14000V--2510500mA
Class B Audio (Two Tubes)14000V--2521400mA

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.

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