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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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Tube-number record

SPECTRAL LIGHT SOURCE

0 archive entries

SPECTRAL LIGHT SOURCE is a tube type in the TubeDatabase archive (class: Gas Discharge Tube). Recorded specifications: brand Ferranti, year 1961, construction Other / special, base Standard, socket Miniature 7-pin (B7G), and maximum plate voltage 500 V. The archive does not yet hold a photographed example of this type.

BrandFerranti
ClassGas Discharge Tube
BaseMiniature 7-pin (B7G)
Filament6.3 V @ 1500 mA

Construction

Primary TypeOther / special
EnvelopeGlass
Base MaterialStandard
SectionsSingle

Filament / Heater

Heater NotesMin. cathode heating delay: 6 sec

Absolute Maximum Ratings

Filters

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Manufacturers

Brands

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    Plate Voltage500 V
    Cathode Current90 mA

    Audio Performance

    Key Features
    • Spectrally pure gas filling
    • Compact source
    • Output proportional to anode current