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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

GRAPHECHON

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BrandRCA
ClassScan-Conversion Storage Tube
BaseDuodecal

Construction

Primary TypeDisplay / CRT
EnvelopeCoaxial Construction with recessed cavity caps
SectionsWriting section, reading section, target section

Filament / Heater

Absolute Maximum Ratings

Audio Performance

Key Features
  • Bombardment-Induced-Conductivity Writing
  • Capacitance-Charge Reading
  • Coaxial Construction
  • High-velocity writing beam
  • Medium-velocity reading beam
  • Secondary emission ratio greater than unity
  • Sturdy charge-storage tube

Application Notes

Designed for data-processing applications where signal information must be transformed from one time base or scanning presentation to another, such as PPI to TV-type signals.

Filters

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