Tube-number record
7BP1
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7BP1 is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand General Electric Co., construction Display / CRT, base Wafer Octal 8-pin, sleeve, socket Octal, and maximum plate voltage 7700 V. The archive does not yet hold a photographed example of this type.
BrandGeneral Electric Co.
ClassCathode Ray Tube
BaseOctal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialWafer Octal 8-pin, sleeve
SectionsSingle
Filament / Heater
Heater NotesHeater voltage and heater current allowable variation +/- 10 per cent
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation 1 | 4900 V | — | — | — | — |
| Typical Operation 2 | 7000 V | — | — | — | — |
Application Notes
Cutoff voltage is necessary for visual extinction of a stationary focused spot. Cathode should be connected to the midtap or to one side of heater supply.
Datasheets
Datasheet: 7BP1.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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