Tube-number record
27EP4
0 archive entries
27EP4 is a tube type in the TubeDatabase archive (class: Cathode-Ray Tube). Recorded specifications: brand General Electric, year 1954, construction Display / CRT, socket Duodecal, and maximum plate voltage 20000 V. The archive does not yet hold a photographed example of this type.
BrandGeneral Electric
ClassCathode-Ray Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater Notes0.6 Amperes +/- 10%
Absolute Maximum Ratings
Plate Voltage20000 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Magnetic-focus and deflection | 16000 V | — | — | — | — |
Application Notes
The 27EP4 is a magnetic-focus and deflection, direct-view all-glass picture tube which provides a 24- by 18-inch picture for television applications.
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