Voltcraft dso 2064g 4 channel oscilloscope 70mhz voltcraft dso 2074g p the voltcraft dso 2064g is a 4 channel 70mhz oscilloscope attachment that is used in combination with a windows reg based computer with a free usb 2 0 interface the computer then becomes a fully operational digital storage oscilloscope dso for the visualisation of electric quantities and signals br there are four independent input channels available for measurement the probes are connected to the dso via bnc connec