The masking of the labels is done by using copper to mask off the individual signals and solder mask to draw in the legends. This PCB-level hacking is simply wonderful to see. The PCBs are ...

Check the price of copper with Money Metals Exchange's interactive live and historical chart. The chart below allows you to check copper spot prices dating back 20 years up to the current date. Copper ...

Monthly prices for copper from January 2014 to December 2024 (in nominal U.S. dollars per metric ton) ...