Worlds smallest Crystal Radio?? DIY Earring Solder KIT (PAIR)


This is  for a kit to build  a pair of crystal radios and one earpiece, Two Crocodile clips for earth and aerial included. Colour of components may vary.

Soldering skills required to build the boards.

If you require ready made please email.

One postage charge for as many kits as you want.

No coils to wind, tuning is by on board tuning capacitor, with tuning screwdriver provided.

If you are fascinated by power free radios then this may interest you. Ideal for portable use, hiking, camping, etc. Or a decorative piece of jewellery!!

Each germanium diode and earpiece is selected for optimum performance.

A fun little radio, just clip aerial and earth crocodile clips to the test points  on the board. Crocodile clips included but you will need to provide the aerial and earth wire.

Frequency received are popular AM stations ie, Talk Sport and Absolute Radio. 550KHZ – 2.5MHZ approx.

You can change the inductor to change the frequency range.


Click here for instructions.


There are no reviews yet.

Be the first to review “Worlds smallest Crystal Radio?? DIY Earring Solder KIT (PAIR)”

Your email address will not be published. Required fields are marked *