This circuit is from an ancient American documentation. The transistors are of the time and the circuit uses a special sensor to detect the trigger point to produce spark plugs.
) This circuit was found in a 80’s Popular Electronics. It issues a warning signal with the signal...
This 600-ohm line driver was found in a 1980s documentation. The integrated circuit used is not...
This circuit was found in a Popular Electronics from the 90s. The circuit uses general purpose...