This circuit uses a power component that is not common today, being recommended by Motorola in the 90's. Note the need for symmetrical power supply.
The 78xx series is manufactured by several semiconductor companies that present ideas for use in...
This alarm siren was found in volume 5 of the 1995 Encyclopedia of Electronic Circuits. The...
This circuit can be implemented with other comparators in the same series. The circuit is from a...