Using the LM383 this circuit was found in a Popular Electronics from the 90s. The source must be 14V and the integrated circuits must have good heat sinks.
July 2017 - Texas Instruments' new 3 A bq25601 single cell battery charger can be found on Mouser...
This circuit was found in old documentation. PUTs are uncommon components today. The circuit...
This simple timer with unijunction transistor was found in an old American technical...