Using 4 operational amplifiers this circuit generates 4 different tones. The circuit is from an American documentation from the 90's. Operational amplifiers are tTL084.
This circuit was obtained in an old US 1974 documentation when Nixie tube displays were common. The...
April 11, 2016 - Mouser Electronics, Inc. is pleased to announce the availability of the new...
This circuit allows to activate a relay in a biestable way using a 555. The pressure switches arm and...