8LO29I

8LO29I

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.

8LO29M

Oscillographic electrostatically focused and deflected electron-beam tube with blue screen glow, short afterglow.

Intended for record of electric processes by photographing in different special-purpose radioelectrotechnical devices.

Critical electric and lighting parameters

  • Filament voltage, 6.3 V
  • Filament current, 0.27-0.33 A
  • First anode voltage, 280-514 V
  • Second anode voltage, 1500 V
  • Cutoff voltage, 67.5-22.5 V
  • Screen centre focused line width at screen glow brightness 16 cd/m2, max. 0.55 mm
  • Modulating electrode voltage at screen glow brightness 16 cd/m2, max. 35 V
  • Deflection sensitivity of temporary plates X1-X2, 0.14-0.26 mm/V
  • Deflection sensitivity of signal plates U1-U2, 0.19-0.29 mm/V
  • Operating time, 1000 hours

Acceptability criterion:

  • a) Spurious glow brightness, max. 0.1 cd/m2
  • b) Screen centre line width, max. 0.7 mm
  • c) Modulating electrode voltage, max. 40 V