Tag Archives: CA3140
How to Make Electronic Circuits to drive the rats, mosquitoes and other animals
This circuit functions with inaudible (ultrasonic) sound. Frequency to 20 kHz sound was heard by humans. The sound frequencies above 20 kHz is called ultrasonic sound. Described a series of produce (emit) ultrasonic sound frequencies between 40 and 50 kHz. Like the remote control system is also cirucit consists of a mini transmitter and receiver [...]
Posted in Electronic Circuit Also tagged animals, BC548, BC558, circuits, drive the rats, Electronic, How, ic 555, make, mosquitoes, other, SK100, SL100, Transmitter, ultrasonic Leave a comment
Make Electronic Circuits to Improve the infra-red remote control TV VCD DVD