We found this circuit in the November 1992 Radio Electronics magazine. The circuit uses an LDR as a sensor and the transistor can be any general-purpose transistor.
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...