23UP4
0 Tubes in archive
BrandSylvania
ClassTelevision Picture Tube
BaseB7-208
Filament6.3V @ 450mA
Construction
Primary TypeRectangular Glass
EnvelopeJ187A
SectionsSingle
Filament / Heater
Warm-up Time11s
Absolute Maximum Ratings
Plate Voltage18000 V
Grid 2 Voltage550 V
Grid 1 Voltage155 V
H-C Voltage200 V
Audio Performance
Key Features
- Direct Viewed Rectangular Glass
- Spherical Faceplate
- Bonded Shield
- Gray Filter Glass
- No Ion Trap
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Grid Drive Service | 16000V | - | - | - | - |
| Cathode Drive Service | 16000V | - | - | - | - |
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