Tube-number record
1BQ2
0 archive entries
1BQ2 is a tube type in the TubeDatabase archive (class: High-vacuum single-anode rectifier). Recorded specifications: brand Amperex, year 1967, construction High vacuum, base Glass, socket Noval (B9A), and maximum plate voltage 20000 V. The archive does not yet hold a photographed example of this type.
BrandAmperex
ClassHigh-vacuum single-anode rectifier
BaseNoval (B9A)
Filament1.4 V @ 600 mA
Construction
Primary TypeHigh vacuum
Rectifier TypeSingle-anode
EnvelopeT 6-1/2, glass
Base MaterialGlass
Sections1
Filament / Heater
Heater NotesParallel supply; tolerance ±10%
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| EHT supply from line time base | 20000 V | — | — | — | 0.2 mA |
Application Notes
For use as EHT rectifier in television receivers. Heater voltage should be adjusted to nominal value at 200 uA DC output. Metal cap should have an insulating cover under high inverse voltage or high humidity conditions.
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