Tube-number record
12GP7
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12GP7 is a tube type in the TubeDatabase archive (class: Cathode-Ray Tube). Recorded specifications: brand General Electric Co., construction Display / CRT, socket Diheptal, and maximum plate voltage 6600 V. The archive does not yet hold a photographed example of this type.
BrandGeneral Electric Co.
ClassCathode-Ray Tube
BaseDiheptal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesAllowable variation +/- 10%
Absolute Maximum Ratings
Plate Voltage6600 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Operation 1 | 3000 V | — | — | — | — |
| Operation 2 | 4000 V | — | — | — | — |
Application Notes
The undeflected focused spot will fall within a 35 mm square centered at the geometric center of the tube face. Symmetrical deflection voltage must be used. Cutoff voltage is the voltage necessary for visual extinction of a stationary focused spot.
Datasheets
Datasheet: 12GP7.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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