Tube-number record
27WP4
0 archive entries
27WP4 is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand Matsushita, year 1956, construction Display / CRT, base Plastic, socket Duodecal, and maximum plate voltage 20000 V. The archive does not yet hold a photographed example of this type.
BrandMatsushita
ClassCathode Ray Tube
BaseDuodecal
Filament6.3 V @ 300 mA
Construction
Primary TypeDisplay / CRT
EnvelopeJ171
Base MaterialPlastic
Sections1
Filament / Heater
Heater Notes0.3 amp
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical | 18000 V | — | — | — | — |
Application Notes
Registration Data Dec 18, 1956. High brightness filterglass screen.
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