This dimmer for the 120 V (117 V) network was found in the magazine Electronics Now of August 1995. The triac is according to the load that must be ohmic.
This heartbeat sensor circuit was found in the July 1992 issue of Radio Electronics magazine. The...
This amplifier circuit with a low power MOSFET was found in Popular Electronics from the 90s. The...
This circuit, which can be built with several CMOS gates, was found in the March 1996 issue of...