This circuit was found in a 90s Integrated Circuits Data Book. It interfaces a data line with a CMOS input, being powered by 5V. Can be used as a shield.
This circuit produces fast light pulses in na incandescent lamp. Pulse rate is adjusted by P1. The...
At each touch of the sensor this counter based on circuit 4017 advances one LED. The circuit can be...
This circuit was found in Motorola's 1968 documentation. It can be built on current equivalent...