Tube-number record
10QP7
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BrandIndustrial Tube Division
ClassCathode Ray Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesHeater current normalized from 0.6A
Absolute Maximum Ratings
Plate Voltage20000 V
Grid 1 Voltage-350 V
H-C Voltage175 V
Audio Performance
Key Features
- Long persistence cascade fluorescent screen
- Produces a small spot of high intensity
- Magnetic focus
- Magnetic deflection
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Visual extinction of deflected focus spot | 20000 V | — | — | — | — |
Application Notes
For standard focus coil #106 or equivalent, the focus coil current is approximately 190 mA D.C. Distance from air gap in focus coil to reference line is 3.25 inches.
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