Tube-number record
20LP4
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BrandTung-Sol
ClassCathode Ray Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeRectangular Glass
EnvelopeGlass
Base MaterialPlastic
SectionsSingle
Filament / Heater
Heater NotesUnipotential Cathode
Absolute Maximum Ratings
Plate Voltage16000 V
Grid 2 Voltage500 V
Grid 1 Voltage125 V
H-C Voltage180 V
Audio Performance
Key Features
- Magnetic Deflection
- Unipotential Cathode
- Grey Filter Faceplate
- Rectangular Glass Construction
- Low Voltage Electrostatic Focus
- External Conductive Coating
- External Single Field 10-degree Trap
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 14000 V | — | — | — | — |
Application Notes
At voltages in excess of 16,000 volts, X-ray radiation shielding may be necessary.
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