Y-1938
0 Tubes in archive
BrandGeneral Electric
ClassLow Voltage Indicator Tube
BaseMiniature
Construction
Primary TypeVacuum Cathodoluminescent Readout
EnvelopeT6-1/2
Sections7-bar segment
Filament / Heater
MaterialDirectly heated common cathode
Absolute Maximum Ratings
Plate Voltage55 V
Plate Dissipation0.1 W
Audio Performance
Key Features
- Low drive and power levels
- High brightness blue-green color
- Very high speed range
- Low persistence phosphor
- Single plane character formation
- No parallax problems
- Thick film technology
- Displays digits 0-9 and specific letters
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 25V | - | - | - | 0.55mA |
Application Notes
The Y-1938 provides display of alphanumeric symbols at low drive and power levels through excitation of phosphor-screened segments energised by electrons emitted by a directly heated common cathode.
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