Assorted Printed Circuit Boards (PCBs) & other electronic parts 12 Lbs Mixed Lot

vintage Archer Resist Ink Solvent kit used for etching printed circuit boards

Mixed circuit boards for precious metal extraction or reuse (10 IBS)

9+ Lbs Circuit Boards Gold, Precious Metal, Component Recovery

10+ Lbs Misc Circuit And Computer Component Boards For Precious Metal Recovery

3x Double Side Stripes Prototype PCB Printed Circuit Boards DIY Proto Breadboard

4 pcs Single Sided Copper Clad Laminate PCB Circuit Boards, CEM-1, 3x4 1 oz.

174-Piece PCB Circuit Board Prototype Kit, Double-Sided Perf Boards in 6 Size...