Tube-number record
7ARP
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BrandGeneral Electric
ClassCathode-Ray Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeJ573C1 Glass
Base MaterialPlastic
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated cathode
Absolute Maximum Ratings
Plate Voltage11000 V
Grid 2 Voltage700 V
Grid 1 Voltage-180 V
H-C Voltage180 V
Audio Performance
Key Features
- Aluminized screen
- High-resolution gun
- Low-voltage focusing lens
- Transparent conductive coating
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Radar/Oscillograph | 10000 V | — | — | — | — |
Application Notes
The 7ARP is a 7-inch electrostatic-focus and magnetic-deflection cathode-ray tube for radar and oscillographic applications. Designed for automatic focus independent of variations in line voltages.
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