Tube-number record
23GJP4A
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BrandRCA
ClassPicture Tube
BaseCRT base (B7 family)
Filament6.3 V @ 450 mA
Construction
Primary TypeOther / special
EnvelopePAN-O-PLY
Base MaterialFilterglass
Sections1
Filament / Heater
MaterialSulfide Type, Aluminized Phosphor
Warm-up Time11s
Heater NotesHeater range 5.7 to 6.9 V
Absolute Maximum Ratings
Plate Voltage23000 V
Grid 2 Voltage70 V
H-C Voltage450 V
Audio Performance
Key Features
- PAN-O-PLY
- Aluminized
- No Ion-Trap Magnet required
- Filterglass
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Cathode-Drive Service | 18000 V | — | — | — | — |
Application Notes
Voltages are positive with respect to grid No.1. Designed for cathode-drive service where the grid No.1 is typically at a reference potential.
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