Two-Channel Oscilloscope Multiplexer

Two-Channel Oscilloscope Multiplexer

is design can be used to turn a standard two-channel oscilloscope into a four-channel scope. Rather …read more

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Description

This design can be used to turn a standard two-channel oscilloscope into a four-channel scope. Rather than having to constantly plug and unplug scope probes to measure multiple inputs, this circuit card connects directly to the BNC connector on the front panel of the oscilloscope, and the probes connect directly to it from the opposite end of the PCB. To switch channels, a simple mechanical DPDT switch can be used to switch inputs. For automated operation, another version of this board uses power from the serial port to switch a relay to select the channel inputs.