0-500 ° K-type thermocouple temperature measurement circuit
1 to 9 pulses select circuit using CD4017
1 to 17 Binary counter circuit using two CD4017 ICs
20 binary counter using CD4017
500 meter circuit diagram
555 based light tester
Analog capacitance meter circuit using CD4013
Audio and digital two-level LED display circuit
Bicycle speedometer circuit using CD4511 CD40106
Binary counter circuit