7LO55I

Oscillographic electrostatically focused and deflected electron-beam tube with green screen glow and middle afterglow intended for record of electric processes by manual observation.

Intended for record of electric processes by manual observation in different special-purpose radioelectronic devices.

Critical electric and lighting parameters

  • Filament voltage, 6.3 V
  • Filament current, 0.27-0.33 A
  • First anode voltage, 80-180 V
  • Second anode voltage, 1100 V
  • Third anode voltage, 2000 V
  • Cutoff voltage (negative), 114-38 V
  • Modulating electrode voltage, max. 63 V
  • Screen centre focused line width, max. 0.7 mm
  • Temporary plate deflection sensitivity,. 0.10-0.15 mm/V
  • Signal plate deflection sensitivity, min. 0.12-0.18 mm/V
  • Min. operating time, 600 hours

Acceptability criterion:

  • a) Spurious glow brightness, max. 0.1 cd/m2
  • b) Screen centre focused line width, max. 1.0 mm

c) Modulating electrode voltage, max. 70 V