O overtyle New Member Dec 20, 2014 #1 Is there a way that I could interface this circuit directly and eliminate the relay on this circuit?
MikeMl Well-Known Member Most Helpful Member Dec 20, 2014 #2 Depends entirely on what load you expect the decoder to drive. Voltage? Current? Inductive?
Tony Stewart Well-Known Member Most Helpful Member Dec 20, 2014 #3 Does it need to be isolated like a telephone switchpad? or can it share a common ground. What voltages? YOu can use CMOS T gates with many phones.
Does it need to be isolated like a telephone switchpad? or can it share a common ground. What voltages? YOu can use CMOS T gates with many phones.