We found this circuit in a 1980s American documentation. The operational amplifiers of the integrated circuit used can be common types in an experimental setup.
This circuit emits a warning sound when night falls. The circuit is from a Hands On Electronics from...
ST Microelectronics has, in its line of low voltage drop linear regulators, the KD1084xx (fixed) and...
This circuit multiplies the frequency of a signal by 100. The circuit was found in the October 1994...