I'm trying to simulate the circuit in the method shown here in LTspice as:
I use the same parts 74HCT74 and 74HCT00.
But the circuit does not function. Here I set F2>F1 and the outputs at R1 and R2 alwyas zero. I tried the swap the F1 and F2 nothing changes. I couldnt figure out what can be the problem here.
I uploaded the above circuit in LTspice here along with the 74HCT library and symbols as rar file.
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