Tube-number record
27GP4
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BrandSylvania
ClassTelevision Picture Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeRectangular Glass
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage22500 V
Grid 2 Voltage500 V
Grid 1 Voltage-125 V
H-C Voltage180 V
Audio Performance
Key Features
- Magnetic Focusing
- Magnetic Deflection
- Gray Filter Glass
- Spherical Faceplate
- Direct Viewed
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical | 20000 V | — | — | — | — |
Application Notes
Anode voltage should not be less than recommended values for brilliance. X-ray shielding may be necessary above 16,000 volts.
Datasheets
Datasheet: 27GP4.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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