Tube-number record
FW-202
0 archive entries
FW-202 is a tube type in the TubeDatabase archive (class: Barrier-Grid Storage Cathode-Ray Tube). Recorded specifications: brand ITT Industrial Laboratories, year 1960, construction Display / CRT, base Plastic, socket 20/21-pin, and maximum plate voltage 180 V. The archive does not yet hold a photographed example of this type.
BrandITT Industrial Laboratories
ClassBarrier-Grid Storage Cathode-Ray Tube
Base20/21-pin
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
Envelope5-inch glass
Base MaterialPlastic
SectionsSingle gun, electrostatically focused and deflected
Filament / Heater
Heater NotesIndirectly heated cathode
Absolute Maximum Ratings
Plate Voltage180 V
Grid 1 Voltage-1600 V
Audio Performance
Key Features
- Background cancellation
- Binary information storage
- Random access
- Image storage
- Scan conversion
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard Writing/Reading | 180 V | — | — | — | — |
Application Notes
Used for PPI radar clutter reduction and high-speed computer working store. Features a unique barrier grid fused to the storage surface.
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