This circuit generates a strong audio tone that scares away mosquitoes. Care must be taken that, due to its potency, it can also cause discomfort to very close people and domestic animals.
This circuit is from Motorola's Linear Interface ICs from 1993. The circuit uses a booster...
Found in a 90s Popular Electronics, this circuit is intended for amplifying analog video signals....
The figure shows a NOR or Non-OU logic function shield using general purpose diodes and a common...