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

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Tube-number record

FJ-405

0 archive entries

BrandGeneral Electric
ClassPhototube
BaseSpecial / none

Construction

Primary TypeHigh-vacuum phototube
EnvelopeGlass
Sections2-electrode

Filament / Heater

Absolute Maximum Ratings

Plate Voltage200 V

Audio Performance

Key Features
  • Highly responsive to ultraviolet radiation
  • Precise tool for laboratory measurement
  • Thin window

Application Notes

The FJ-405 is a two-electrode high-vacuum phototube which is highly responsive to ultraviolet radiation between 2000 and 4000 angstroms. This phototube is a precise tool for measurement of ultraviolet radiation in the laboratory. One industrial application is to provide an accurate means of checking the radiation of ultraviolet lamps during manufacture.

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