Tube-number record
12HPX
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BrandResearch Enterprises, Ltd.
ClassCathode Ray Tube
BaseMagnal
Filament6.3 V @ 0.6 mA
Construction
Primary TypeDisplay / CRT
Envelope796 Cl
Base MaterialMetal Shell
Sections1
Filament / Heater
Heater NotesHeater current 0.6A ± 10%
Absolute Maximum Ratings
Plate Voltage5500 V
Grid 2 Voltage1500 V
Audio Performance
Key Features
- Electrostatic Focus
- Electrostatic Deflection
- 12-inch diameter
- High vacuum
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical | 5000 V | — | — | — | 3 mA |
Application Notes
Spot centering within 45 mm square. Positive voltage on D1 deflects beam toward pin #8. Positive voltage on D3 deflects beam toward pin #11.
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