By using this electronic circuit you can convert a single channel oscilloscope into 4 channel oscilloscope using an analog Multiplexer.
It works only for Analog Oscilloscope !
Maximum frequency tested was less than 100 KHz.
Maximum input voltage must be less than the battery/supply voltage (9V), however by using a voltage divider (97X Attenuation) it is possible to connect it to the mains 3 phase 400V voltage.
Parts list:
IC NE555
IC CD4066
IC CD4017
Resistor 1K (2pcs)
Resistor 510K (8pcs)
Capacitor 1000uF 16V
Capacitor 10uF (4pcs)
Capacitor 100nF
Capacitor 1nF
Potentiometer 10K (8pcs)
Potentiometer knob (8pcs)
BNC Jack Female Connector PCB Mount (5pcs)
Slide switch (4pcs)
IC Socket 8 pin
IC Socket 14 pin
IC Socket 16 pin
Battery 9V with holder
Circuit:
Watch this Video for more details:
