In this day and age when we’re surrounded by hi-tech we should leave it all behind and return to a very basic circuit. So stop thinking for a moment about faster and bigger — it’s the small things in life which are best!Since we’re continuously exposed to hi-tech gadgets, it’s easy to forget that we can still build interesting circuits with only a few components. There is nothing revolutionary about this circuit, but this shouldn’t deter the true electronics hobbyist. Apart from the educational aspect, it is satisfying to build a well-working circuit that uses only a few simple components.The circuit for a radio receiver is still a good example of this. A medium wave radio in particular becomes a very simple circuit when we go back to basics. It is also one of the most satisfying circuits to construct: you solder a few components onto a PCB, connect a battery and you’re greeted with music from the headphones. A very memorable experience!