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by Bill Degnan - 10/06/2010 09:52 | |
Hi Bill
It is not likely to be 5V logic. Most transistor logic use 0 and -10 or -12. You might first try just shorting the input leads. This is more likely. You might also try tracing out one flipflop and then measure the supply voltages. It seems there are two flops per board. I wish I could make sense of the written lable. I wonder what it was used for. Most counting applications would be in decimal. Dwight Reply |