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OS-5020 LG Precision Analog Oscilloscope


The OS-5020 is a 20 MHz analog oscilloscope from LG Precision. Measure voltage or current signals over time in an electronic ciruit or component to display amplitude, frequency and rise times, etc. Applications include troubleshooting, production test, and design.

 Additional Features:

  • 20 MHz
  • 2 Channel
  • Dual Trace
  • 6" Rectangular CRT with internal graticule
  • Sensitivity 1mV/div
  • Rise time: 17.5 ns
  • ALT. triggering function (Vert Mode)
  • CH2 Polarity inversion switch
  • High sensitivity X-Y mode
  • Sweep magnification (X10)
  • TV sync. seperator circuit for stable TV signal observation
  • 400V maximum input voltage

The LG Precision OS-5020 oscilloscope is a graph-displaying device – it draws a graph of an electrical signal. In most applications, the graph shows how signals change over time: the vertical (Y) axis represents voltage and the horizontal (X) axis represents time. The intensity or brightness of the display is sometimes called the Z axis.


The LG Precision OS-5020 oscilloscope's simple graph can tell you many things about a signal, such as: the time and voltage values of a signal, the frequency of an oscillating signal, the “moving parts” of a circuit represented by the signal, the frequency with which a particular portion of the signal is occurring relative to, other portions, whether or not a malfunctioning component is distorting the signal, how much of a signal is direct current (DC) or alternating current (AC) and how much of the signal is noise and whether the noise is changing with time.

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