This battery charger circuit was found in the August 1970 issue of Radio Electronics magazine. The circuit uses 4 transistors. Q1 must be provided with a good heat sink.
This crowbar protection circuit for non-regulators blows the fuse when the load voltage exceeds a...
This general-purpose transistor amplifier stage was found in the November 1993 issue of...
This circuit was found in an old British publication from 1976. It must be powered with 5 V and...