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Discrete digital clock toggle problem

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askingNo123

New Member
Hello, i have some question for discrete counter.
When i pspice my circuit, it works.
Therefore i made discrete counter in real , but i found some problem on here.
When i put 5V direct to Q or Qbar , the opposite side shows another value (about 0V) , which works as normal flip flop.
But problem of here is that, when i put pulse,(to R36), the value of Q and Qbar does not change (Q -> 5V, Qbar -> 0V and kept same).
Please help me to solve it. Thank you6진 카운터.png6진 파형.png
front.PNGback.PNG
 
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gophert

Well-Known Member
Most Helpful Member
I count 12 Transistors in the schematic but I see only 11 on the circuitboard.
 
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