This circuit was found in an American documentation from the 80's. The components are from that time. It provides a variable output of 18 to 30 V with a current of 200 mA.
Found in a Hands On Electronics from the 90s, this circuit can be easily assembled today, as the...
I found tis circuit in na old documentation from 1958. The circuit uses germanium transistor...
This is the basic configuration of a CMOS 4027 integrated circuit as a flip-flop. The circuit can...