Tube-number record
M38-201
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ClassVery High Resolution Cathode-Ray Tube/Coil Assembly
Construction
Primary TypeDisplay / CRT
Envelope38 cm diagonal
SectionsSingle-gun
Filament / Heater
Absolute Maximum Ratings
Plate Voltage18000 V
Grid 2 Voltage800 V
Audio Performance
Key Features
- Integrated AT1991 deflection unit
- Astigmatism correction magnets
- Very high resolution (3000 TV lines)
- Factory-set astigmatism for landscape format
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Landscape format (290 mm x 225 mm scan) | 18000 V | — | — | — | 0.25 mA |
Application Notes
The tube/coil assembly consists of M38-200 tube and AT1991 deflection unit. To avoid deterioration of astigmatism correction, the coil must be at zero potential before being moved on the tube neck. Spot shift at screen centre should not exceed 1 cm if centring correction is applied.
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