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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

6896/1855

0 archive entries

BrandRCA
ClassSignal-Converter Storage Tube
BaseOctal
Filament6.3 V @ 600 mA

Construction

Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialShell Octal/Diheptal
SectionsTwo coaxial electron guns (Writing and Reading)

Filament / Heater

Heater NotesSeparate heater for Writing and Reading cathodes.

Absolute Maximum Ratings

Plate Voltage13000 V
Grid 2 Voltage1500 V
Grid 1 Voltage-125 V
H-C Voltage100 V

Audio Performance

Key Features
  • Two coaxial electron guns
  • Electrostatic focus
  • Magnetic deflection
  • Induced-conductivity writing
  • Capacitance-charge reading

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Writing Gun————0.005 mA
Reading Gun————0.001 mA

Application Notes

Used in data-processing applications for continuous transformation of signal information from one time base to another.

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