Tube-number record
21AYP4
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BrandSylvania
ClassTelevision Picture Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesDirectly heated
Absolute Maximum Ratings
Plate Voltage18000 V
Grid 2 Voltage500 V
Grid 1 Voltage-125 V
H-C Voltage180 V
Audio Performance
Key Features
- Electrostatic Focus
- Magnetic Deflection
- 21” Direct Viewed
- Rectangular Glass Type
- Spherical Faceplate
- Gray Filter Glass
- Single Field Ion Trap
- External Conductive Coating
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Recommended | 16000 V | — | — | — | — |
Application Notes
External Conductive Coating must be grounded. Visual extinction of focused raster.
Datasheets
Datasheet: 21AYP4.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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