Powerful Ultrasonic Dog Repeller
There are alternatives on the market with 4 TR2516T1 ultrasonic transmitter plow transmitter 25kHz 16mm dimensions, the output of which is installed on the CD4093A integrated circuit of the ultrasonic dog repellent circuit, powered by BSS88 mosfets. Output peak voltage can rise up to 85-90V, frequency adjustment can be made with R1 trimpot. In the…