12WP4
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BrandLansdale Tube Company
ClassCathode-Ray Tube
Base9-pin miniature
Filament-V @ 600mA
Construction
Primary TypeTriode ion trap gun
EnvelopeGlass, gray tinted
Sections1
Filament / Heater
Heater NotesHeater current: 0.6A ± 10%
Absolute Maximum Ratings
Plate Voltage12000 V
Grid 1 Voltage125 V
H-C Voltage140 V
Audio Performance
Key Features
- Small diameter neck
- Low power deflection
- Low weight bulb
- Gray tinted face plate
- 65% light transmission
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Direct View Television | 10000V | - | - | - | - |
Application Notes
Specifically designed for low cost television receivers. Features a standard 9-pin miniature stem. Uses a triode ion trap gun with a single field ion trap magnet.
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