I've just embarked into the wonderful world of EMs with a working but dirty Gottlieb Playball. Fun little game. Most of my 44/47 bulb sockets are dim or flaky. A little wiggling of the bulb will get them to light up for a bit and then they'll go dim/out after a few jiggles from gameplay. Before I replace all of my sockets, I've seen pictures of the soldering the end of the socket fix on pinrepair. Not sure I understand where exactly to put the solder. Can someone please explain and/or post a couple of photos? Or tell me to abandon this idea entirely