Tube-number record
12BP7
0 archive entries
12BP7 is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand Research Enterprises, Ltd., construction Display / CRT, base Metal Shell, socket Magnal, and maximum plate voltage 5500 V. The archive does not yet hold a photographed example of this type.
BrandResearch Enterprises, Ltd.
ClassCathode Ray Tube
BaseMagnal
Filament6 V @ 0.6 mA
Construction
Primary TypeDisplay / CRT
EnvelopeJ 96 C1
Base MaterialMetal Shell
SectionsSingle
Filament / Heater
Heater NotesCurrent 0.6 Amps +/- 10%
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 5000 V | — | — | — | 5 mA |
Application Notes
Positive voltage on D1 deflects beam toward pin #8. Positive voltage on D3 deflects beam toward pin #11. Anode #1 current at Ec1=0 is 5mA max.
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