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Tube Database (7,341 tube types · 1,270 archive entries)

Other (3,257 tube types), Pre (2,314 tube types), Power (1,030 tube types), Rectifier (740 tube types)
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Tube-number record

A56-1017X

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ClassColor Picture Tube
Base13-pin
Filament6.3 V @ 750 mA

Construction

Primary TypeDisplay / CRT
EnvelopeGlass
Sections3-gun (Red, Blue, Green)

Filament / Heater

Heater NotesUnder standby conditions voltage can be 5.0V

Absolute Maximum Ratings

Plate Voltage27500 V
Grid 2 Voltage1000 V
Grid 1 Voltage-400 V
Cathode Current1 mA
H-C Voltage410 V

Audio Performance

Key Features
  • Wide angle deflection - 110 degrees
  • Ultra rectangular faceplate
  • Internal magnetic shielding
  • Implosion protection
  • Aluminized screen
  • Tri-color phosphor-dot

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Design center25000 V————

Application Notes

The tube is provided with an internal magnetic shield and may be provided with an automatic degaussing system consisting of two coils. For proper degaussing, an initial m.m.f. of 450 ampere-turns is required.

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