Tube-number record
D.7-11
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BrandPhilips
ClassCathode Ray Tube
Filament6.3 V @ 100 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
SectionsSingle gun
Filament / Heater
Heater NotesHeater current limit specified at 100mA
Absolute Maximum Ratings
Audio Performance
Key Features
- Electrostatic deflection
- Internal diaphragm
- Professional quality
- Post-deflection acceleration
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Cut-off/Modulation | — | — | — | — | — |
Application Notes
Type D7-11 (also referenced as DH-11 in internal reports) underwent production transfer to Brive with successful 1000-hour life testing.
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