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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

13GF7-A

0 archive entries

13GF7-A is a tube type in the TubeDatabase archive (class: Dissimilar Double Triode). Recorded specifications: brand General Electric, construction Triode, and socket Noval (B9A). The archive does not yet hold a photographed example of this type.

BrandGeneral Electric
ClassDissimilar Double Triode
BaseNoval (B9A)
Filament13 V @ 450 mA

Construction

Primary TypeTriode
EnvelopeT-9
Sections2

Filament / Heater

MaterialCoated Unipotential
Warm-up Time11s
Heater NotesHeater Warm-up Time: 11 Seconds

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    Audio Performance

    Key Features
    • Combined vertical-deflection oscillator and amplifier
    • Section one: high-mu triode
    • Section two: low-mu, high-perveance triode