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

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
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GK32 vacuum tube outline illustration

Tube-number record

GK32

0 archive entries

GK32 is a tube type in the TubeDatabase archive (class: Cold Cathode Triode). Recorded specifications: brand Ferranti, year 1955, construction Triode, socket Special / none, and maximum plate voltage 140 V. The archive does not yet hold a photographed example of this type.

BrandFerranti
ClassCold Cathode Triode
BaseSpecial / none

Construction

Primary TypeTriode
EnvelopeGlass
SectionsSingle

Filament / Heater

Absolute Maximum Ratings

Plate Voltage140 V
Cathode Current20 mA

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Pulse Operation / Relay135 V————

Application Notes

The anode supply switch should be shunted by a resistor of approximately 30 megohms to prevent surge effects.

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    Audio Performance

    Key Features
    • Gas filled
    • Miniature dimensions
    • Pulse operation
    • Low duty cycle