When you use two SN74123N multivibrators, I always get 'two sources of tension proved in parallel' when I connect the grounds

It's okay if they are part of the same chip or not, whenever I connect a ground to two of them, the "two sources of tension proved in parallel" error when I try to simulate. The simulation works when I try to only use one of them and able to connect to the mass. But, when I try to use them both and connect them both to the mass, I get the error. Any ideas? Thanks in advance.


Tags: NI Software

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