Due to the low current drawing, the circuit can be supplied from 230Vac mains without a transformer. Supply voltage is reduced to 12Vdc by means of C1 reactance, a two diode rectifier cell D1 & D2 and ...
This Toggle Switch uses the popular Johnson Decade counter IC CD4017. By giving positive pulses to its clock input, the ten outputs of the IC becomes high one by one provided the reset pin is grounded ...
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