But for a weekend project, [Vinod.S] took the ultrasonic transmitter ... the circuit there is simple, consisting of the ultrasonic receiver, followed by a transistor amplifier for the modulated ...

[GreatScott] does exactly this in the video after the break, building both a transmitter and ... as [GreatScott] built a basic circuit around a TA7642 AM amplifier/demodulator IC, with only ...