4-bit Asynchronous Ripple Up Counter using Dual JK Flip Flop | Tinkercad
GATE 2015 MOD - 5 Asynchronous Counter using JK flip flops - YouTube
simulation - Trying to make a mod-10 counter with JK flip-flops in CircuitMaker but my outputs are always coming out HIGH instead of counting, not sure whats wrong - Electrical Engineering Stack
Examples of Designing of Synchronous Mod-N Counters
Asynchronous Counter - ElectronicsHub
VLSI DESIGN: 4-bit Asynchronous up counter using JK-FF (Structural model)
Mod 8 Synchronous Counter using JK Flip-Flop - Multisim Live