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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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QB 3/200 vacuum tube outline illustration

Tube-number record

QB 3/200

0 archive entries

QB 3/200 is a tube type in the TubeDatabase archive (class: Transmitting tube). Recorded specifications: brand Philips and construction Tetrode. The archive does not yet hold a photographed example of this type.

BrandPhilips
ClassTransmitting tube

Construction

Primary TypeTetrode
EnvelopeGlass
Sections1

Filament / Heater

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