19BEP4
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BrandLe Cathoscope
ClassCathode Ray Tube
BaseCRT base (B7 family)
Filament6.3V @ 450mA
Construction
Primary TypeDisplay / CRT
EnvelopeRectangular glass
Base MaterialPlastic
SectionsSingle gun
Filament / Heater
Heater NotesWarm-up time 11 seconds
Absolute Maximum Ratings
Plate Voltage20000 V
Grid 2 Voltage700 V
H-C Voltage200 V
Audio Performance
Key Features
- Short overall length
- Small neck diameter
- 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 | 16000V | - | - | - | - |
Application Notes
The grid n°4 voltage required for optimum focus of any individual tube may have a value anywhere between 0 and 400 volts. It is independent of anode current.
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