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Review title: Useless on small circuits
Product review: I bought this to repair broken traces on a printed circuit board. The board has tiny copper traces that rather close together. Some of them are not continuous and need a conductive pen or similar to complete the connections. This pen fails at making this kind of repair. It has a tiny ball at the end that you press to allow the silver conductive fluid to flow. The problem is I could find no way to press lightly enough to allow a very thin stream of conductive fluid to flow. Instead, I get big pools of the stuff which goes all over the circuit. Fortunately, it can be cleaned up with solvent, but I don't see how anyone could draw a straight line with this pen, much less a delicate repair to a circuit.
