Tube-number record
A37-570X
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ClassHi-Bri Colour Picture Tube
BaseCRT base (B12 family)
Filament6.3 V @ 685 mA
Construction
Primary TypeOther / special
EnvelopeGlass, 37cm diagonal
SectionsTriple-aperture electrodes
Filament / Heater
Heater NotesIndirect heating by a.c. or d.c.
Absolute Maximum Ratings
Plate Voltage27500 V
Cathode Current0.75 mA
H-C Voltage250 V
Audio Performance
Key Features
- Soft-Flash technology
- Hi-Bri screen with pigmented phosphor
- Slotted shadow mask
- Quick-heating cathodes
- Internal magnetic shield
- Tension band implosion protection
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operating Conditions | 25000 V | — | — | — | — |
Application Notes
When combined with an appropriate hybrid saddle toroidal deflection unit (e.g. AT1200 or AT1205), it forms a self-converging assembly; dynamic convergence is not required.
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