Tube-number record
7BAP
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BrandDu Mont
ClassCathode-Ray Tube
BaseCRT base (B12 family)
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
Envelope4x6-Inch rectangular
Base MaterialMedium Shell Diheptal
Sectionsdual beam
Filament / Heater
Heater NotesHeater current 0.6 A ± 10%
Absolute Maximum Ratings
Plate Voltage2750 V
Plate Dissipation6 W
Grid 2 Voltage8250 V
Grid 1 Voltage-200 V
H-C Voltage180 V
Audio Performance
Key Features
- Rectangular dual beam
- Post acceleration
- Electrostatic focus and deflection
- High brightness
- Neck deflection electrode connections
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Post Accelerator Operation | 2000 V | — | — | — | 0.025 mA |
Application Notes
The electron gun structures are so designed as to require no appreciable focusing current. Post acceleration is used to obtain maximum deflection sensitivity.
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