This electronic ignition for cars of the time was found in the Radio Electronics magazine of May 1976. The circuit uses power transistors that must be mounted on heat sinks.
With this converter it is possible to tune the signals of the 15 MHz WWV.in AM receiver. WWV is...
This negative voltage source was found in a Popular Electronics from the 90's. The transformer has 120V...
This circuit is from the Audio Handbook of the National Semiconductor of 1977. Its purpose is to...