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Tube Database (7,341 tube types · 1,270 archive entries)

Other (3,257 tube types), Pre (2,314 tube types), Power (1,030 tube types), Rectifier (740 tube types)
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Tube-number record

5659

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BrandGeneral Electric
ClassBeam power amplifier pentode
BaseOctal
Filament12.6 V @ 150 mA

Construction

Primary TypeBeam tetrode / beam power
EnvelopeMT-8
SectionsSingle

Filament / Heater

Absolute Maximum Ratings

Plate Voltage250 V
Plate Dissipation7.5 W
Grid 2 Voltage250 V

Audio Performance

Typical THD7%
Power Output3.4 W
Key Features
  • Reliable performance under conditions of severe vibration
  • Intermittent operation

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A Amplifier250 V300070000—30 mA

Application Notes

The D-C resistance in the grid circuit, under rated maximum conditions, should not exceed 500000 Ohms for self-bias operation and 100000 Ohms for fixed bias operation.

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