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 interesting circuit was found on the Internet and is based on the 555. The circuit uses power...
Found in an old American documentation, this circuit uses neon lamps as a reference to obtain a...
The basis of this project is a three-position lever switch or similar. When the switch is in the...