This circuit for cars with mechanical ignition systems was found in the Electronics Experimenter handbook from 1991. It inhibits the ignition system, preventing theft.
This sensitive Japanese mid-wave receiver from the 1960s has an output power of 45 mW and is...
This basic TTL watch and minute clock circuit was found in European documentation from the 1970s....
This circuit uses a pickup coil to take the signal from a telephone line without contacts. The circuit...