Tube-number record
12DP7
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BrandRMA
ClassCathode Ray Tube
BaseOctal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialWafer Octal 8-Pin, Sleeve
SectionsSingle
Filament / Heater
Heater NotesDC or AC
Absolute Maximum Ratings
Plate Voltage7700 V
Grid 2 Voltage330 V
H-C Voltage125 V
Audio Performance
Key Features
- Magnetic focusing
- Magnetic deflection
- Long persistence phosphor
- Large bulb size
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 7000 V | — | — | — | 1 mA |
Application Notes
Brilliance and definition decrease with decreasing anode voltage. In general, anode voltage should not be less than 4000 volts.
Datasheets
Datasheet: 12DP7.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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