Tube-number record
55451
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BrandPhilips
ClassCathode Ray Tube (CRT)
Construction
Primary TypeBeam tetrode / beam power
EnvelopeGlass, 13 cm flat screen
Sections2
Filament / Heater
Absolute Maximum Ratings
Plate Voltage3500 V
Cathode Current0.02 mA
Audio Performance
Key Features
- Flat screen
- Post-acceleration spiral
- Symmetric Y-deflection
- Split-beam
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Post-acceleration | 1000 V | — | — | — | 0.01 mA |
Application Notes
Oscilloscope tube with post-acceleration spiral and symmetric y-deflection. Developed originally as English production E.T.E.L.
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