DIY electronic projects, soldering tutorials, cool components and more...
If you can not afford a real NIXIE tube watch, there is an alternative. It is this 4-digit 7-segment LED watch kit. It costs less than 10 euros and you can find it on most Chnese resellers websites. It comes as a kit and you will need to do a bit of soldering and assembling.
The first step in electronics is understanding the concepts of current and voltage. There is a hydraulic analogy that helps to understand electricity, but here we will try to cover how it works on atomic and electron level.
The most important chip in commodore 64 computer is the PLA chip. When this chip is broken, nothing will work and most certainly you will get a black screen after you try to turn it on. The original replacement chip is hard to get and if you find one it is not cheap. Luckily there are alternatives for replacement. It is possible to create one using EPROM, however the results of it's performance vary, or you can buy one on the market like SuperPLA, realPLA, U17 PLAnkton or PLAtinum.