23GWP4
0 Tubes in archive
BrandPhilco
ClassTelevision Picture Tube
BaseB7-208
Filament6.3V @ 450mA
Construction
Primary TypeCathode Ray Tube
EnvelopeJ187K1
Base MaterialB7-208
Filament / Heater
Warm-up Time11s
Heater NotesVoltage range: 5.7 to 6.9 V
Absolute Maximum Ratings
Plate Voltage22000 V
Grid 2 Voltage80 V
Grid 1 Voltage-154 V
H-C Voltage300 V
Audio Performance
Key Features
- Banded implosion protection
- Internal shielding
- Aluminized screen
- Non-ion trap gun
- Electrostatic focus
- Magnetic deflection
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Cathode Drive Service | 18000V | - | - | - | 0.2mA |
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