Tube-number record
12LP4-A
0 archive entries
12LP4-A is a tube type in the TubeDatabase archive (class: Television Picture Tube). Recorded specifications: brand General Electric, year 1954, construction Magnetic focus and deflection, base Small-shell Duodecal 5-Pin, socket Duodecal, and maximum plate voltage 12000 V. The archive does not yet hold a photographed example of this type.
BrandGeneral Electric
ClassTelevision Picture Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeMagnetic focus and deflection
Envelope12-Inch Round Glass
Base MaterialSmall-shell Duodecal 5-Pin
Sections1
Filament / Heater
Heater NotesHeater current is 0.6 Amperes nominal
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 11000 V | — | — | — | — |
Application Notes
The 12LP4-A is an all-glass picture tube for television applications. It features a gray faceplate to increase contrast and an external conductive coating that acts as a filter capacitor when grounded.
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