The beginner’s guide for hobbyists and makers unlocks some of the practical secrets behind lightning detection design.

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A lightning detector is a device that detects lightning produced by thunderstorms. In one of my previous videos, I showed you how to make such a detector with the help of the AS3935 sensor board which ...

But this time the receiving side was swapped out, as [GreatScott] built a basic circuit around a TA7642 AM amplifier/demodulator IC, with only six passive components and a hand-wound coil.

But this time the receiving side was swapped out, as [GreatScott] built a basic circuit around a TA7642 AM amplifier/demodulator IC, with only six passive components and a hand-wound coil.

TA7642 Tuning Circuit The circuit of the radio is mainly composed of tuning circuit, high frequency amplifying circuit, detecting circuit, audio amplifying circuit and power amplifying circuit.

Not so fast… sadly the device is no longer produced but the TA7642 made by Philips is a good substitute. Looking at its data sheet, it seems to have a very similar specification.

The original goal was to build a receiver test circuit to pick up signals generated by the wheel rotation sensor. To start off with the TA7642 IC was used in its standard configuration. Initial ...