A56-120X
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ClassColour Television Picture Tube
BaseB12-244
Filament6.3V @ 900mA
Construction
Primary TypeShadow-mask colour CRT
EnvelopeReinforced glass
SectionsTriple-gun
Filament / Heater
Heater NotesRegulated supply recommended for maximum cathode life.
Absolute Maximum Ratings
Plate Voltage27500 V
Grid 2 Voltage400 V
Cathode Current1 mA
H-C Voltage250 V
Audio Performance
Key Features
- Advanced red phosphor, europium activated
- Unity current ratio
- Temperature compensated shadow-mask
- Reinforced tube envelope - separate safety screen not required
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard | 25000V | - | - | - | 0.8mA |
Application Notes
Magnetic shielding must be provided to minimize extraneous magnetic fields; shielding should be 0.5mm minimum thickness cold-rolled mild steel.
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