This is for my latest resurrection. Its off of a 1975 R75/6. I spent a couple of minutes straightening all of the pins and even cleaned them all with my Dremel and a small wire brush. Sprayed contact cleaner on the front and back and am ready to start plugging. (Note: The picts are before the cleaning and the straightening). When it comes to electrical I just kind of shut down. The contact pins that obviously have a strip in the back were somewhat loose, not overly, and not all of them. Is them being loose going to inhibit the boards functionality? Should I drop some solder on each to sure them up? Am I over thinking the function and the way these work? Can I test each with a voltmeter? How?