This was another winter vacation project. Lee-Kuo and I love electronic things and so we just had to copy this little circuit. We found all the components in our local electronics shop and then we etched the PCB. We painted the PCB green which was a bad idea because it created a short circuit somewhere. We know it works because it lights up, but we need to make another one without the glossy paint.
It really is a lovely thing, just a pity we painted it
next time we won't paint it and then it will work
DIY family 