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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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GL-1P29/FJ-401 vacuum tube outline illustration

Tube-number record

GL-1P29/FJ-401

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GL-1P29/FJ-401 is a tube type in the TubeDatabase archive (class: Phototube). Recorded specifications: brand General Electric, construction Other / special, socket Subminiature, and maximum plate voltage 100 V. The archive does not yet hold a photographed example of this type.

BrandGeneral Electric
ClassPhototube
BaseSubminiature

Construction

Primary TypeOther / special
EnvelopeGlass
Sections2

Filament / Heater

Absolute Maximum Ratings

Plate Voltage100 V

Audio Performance

Application Notes

Useful in photoelectric control apparatus where a high degree of output per unit of light flux is required.

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    Key Features
    • High sensitivity in the visible range
    • Maximum output in the blue portion
    • Gas-filled
    • Two-electrode