Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I have built (actually only the counters/dividers/LEDs part) this circuit on a breadboard and it does work. I used a bench power supply at 6 volts and a 555 timer to supply clock pulses for testing purposes. Be careful of the current needed to drive the LEDs, current limiting resistors may be required at higher voltages (this will also depend on the exact type of LED displays used).
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