This circuit was found in a Popular Electronics from the 90s. The transistors are general purpose, and the gain depends on the ratio between R2 and R1.
Found in American documentation, this switch is based on the 4093. The load will determine the...
This circuit was found in a 90s Electronic Design. The integrated circuits are from that time....
The circuit shown was obtained from a 1976s publication for radio amateurs. Its purpose is to...