Tube-number record
3ADP-
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BrandDu Mont
ClassCathode-ray Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeJ24ZA1
Base MaterialSmall Shell
SectionsSingle beam
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage3000 V
Plate Dissipation6 W
Grid 2 Voltage6000 V
Grid 1 Voltage-200 V
H-C Voltage180 V
Audio Performance
Key Features
- Flat face
- Post-acceleration
- Restricted deflection area
- High light output
- Tight-tolerance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Post-Accelerator Operation | 2000 V | — | — | — | — |
Application Notes
The Du Mont Type 3ADP- is designed for high deflection sensitivity and small spot size. No appreciable focus electrode current is required. Deflector and anode leads are brought out through the bulb wall for maximum insulation.
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