12DP7-B
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BrandRCA
ClassOscillograph Tube
BaseLong Medium-Shell Octal 8-Pin
Filament6.3V @ 0.6mA
Construction
Primary TypeCathode Ray Tube
EnvelopeJ96K
Base MaterialPlastic
SectionsSingle
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Plate Voltage10000 V
Plate Dissipation6 W
Grid 2 Voltage700 V
Grid 1 Voltage-180 V
H-C Voltage125 V
Audio Performance
Key Features
- Filterglass faceplate
- Magnetic Focus
- Magnetic Deflection
- Long persistence phosphorescence
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Example 1 | 4000V | - | - | - | 0.2mA |
| Example 2 | 7000V | - | - | - | 0.2mA |
Application Notes
Ultor input power should be limited to 6 watts. For any ultor voltage between 4000 and 10000 volts.
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