Stereo FM Transmitter (CB8459E)

This circuit was found in a 90s Radio Electronics. The FM encoder or multiplexer is an uncommon component today.

Digital Target Shooting (CB3839E)
This shoot-to-target game uses well-known CMOS circuits and the player hits the LED by squeezing...
Current to voltage converter (CB9608E)
Using an operational and a transistor according to the maximum desired current, this circuit...
12 V x 4 A Power Supply for the Workbench (CB383E)
Up to 4 A can be sourced by this Power supply. It can be used to power automotive appliances and...