This circuit was found in an American documentation from the 90s. It consists of a variable with a triac in which the load current can be controlled, monitored by an ammeter.
This temperature compensated circuit was found in a Popular Electronics of the 1990s. The circuit...
This LED special effects circuit was found in the February 1992 Radio Electronics magazine. The...
This circuit is part of an oscilloscope project with the PC. Its purpose is to record a peak in a...