23FDP4
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BrandRCA
ClassBlack-and-white Pan-O-Ply picture tube
BaseB7-208
Filament6.3V @ 450mA
Construction
Primary TypeCRT
EnvelopeRectangular Glass
Base MaterialPlastic
Sections1
Filament / Heater
Heater NotesHeater warm-up time 11 seconds
Absolute Maximum Ratings
Plate Voltage23000 V
Grid 2 Voltage70 V
H-C Voltage450 V
Audio Performance
Key Features
- PAN-O-PLY Integral Implosion Protection
- 110° Magnetic Deflection
- Low-Voltage Electrostatic Focus
- Aluminized Screen
- Electron Gun Requiring No Ion-Trap Magnet
- Low Grid-No.2 Voltage for Cathode-Drive Service
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Cathode-Drive Service | 18000V | - | - | - | - |
Application Notes
The RCA-23FDP4 is a black-and-white Pan-O-Ply picture tube which eliminates the need for either an integral protective window or a separate safety-glass window. Integral implosion protection is provided by a formed rim band and a welded tension band around the periphery of the tube panel.
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