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presetteable

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    Using a push button as start for countdown timer with 74190 ICs

    I´ve been thinking for hours and just can't seem to find a way to do this. As a final project i need to make a presetteable countdown timer using 74190 ICs, i know how to preset numbers using the DATA inputs and how to connect between the 74190s, the problem is that after presetting a number i...

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