23ETP4
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BrandRCA
ClassPicture Tube
BaseB7-208
Filament6.3V @ 600mA
Construction
Primary TypeRectangular glass
EnvelopeJ187 K
Base MaterialGlass
SectionsSingle
Filament / Heater
Heater NotesHeater warm-up time: 11 seconds
Absolute Maximum Ratings
Plate Voltage23000 V
Grid 2 Voltage550 V
Grid 1 Voltage-155 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
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Cathode-Drive Service | 18000V | - | - | - | - |
Application Notes
The 23ETP4 is a black-and-white PAN-O-PLY picture tube which eliminates the need for an integral protective window or separate safety-glass. It features a formed rim band and welded tension band for implosion protection.
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