Tube-number record
3AP1A
0 archive entries
3AP1A is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand Sylvania, construction Display / CRT, socket 7-pin (non-miniature), and maximum plate voltage 1650 V. The archive does not yet hold a photographed example of this type.
BrandSylvania
ClassCathode Ray Tube
Base7-pin (non-miniature)
Filament2.5 V @ 2.1 mA
Construction
Primary TypeDisplay / CRT
EnvelopeRound Glass
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage1650 V
Grid 2 Voltage1100 V
Grid 1 Voltage-125 V
Audio Performance
Key Features
- Direct Viewed
- Electrostatic Focus
- Electrostatic Deflection
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical | 1500 V | — | — | — | — |
Application Notes
With D2 positive with respect to D1, the spot is deflected toward Pin No. 1. With D4 positive with respect to D3, the spot is deflected toward Pin No. 6. Brilliance and definition decrease with decreasing Anode No. 2 Voltage.
Datasheets
Datasheet: 3AP1A.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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