I bought a house last summer, and the previous owners left a few things behind including a Fisher 500-TX, one Fisher bookshelf speaker and a Dual 1214 turntable. At one point they had two Fisher bookshelf speakers downstairs and two XP 7B speakers wired upstairs, but only one bookshelf speaker was left behind. They were the original owners of house, which was built in 1960, and are now in their 90s. I turned on the 500-TX to test it out, everything seemed good -- radio, tune-o-matic etc. The turntable's speed switch was stuck, but I was able to take it apart and reassemble it to get it in working order. I hooked up the turntable to the receiver to test it out, and when I powered the receiver on I blew a couple of fuses. D'oh! The screw-on fuse on the back is fine, the two on the power supply board are both blown. I'm planning a recap, this thread has been helpful for my parts list: http://audiokarma.org/forums/index.php?threads/500-tx-sigh.541177/ This thread has been helpful for assembling a dim bulb tester, which I'm planning to do before testing with live voltage again: http://audiokarma.org/forums/index.php?threads/compact-dim-bulb-tester-wiring.465423/ Planning to do this slowly as I'm learning as I go. I have a couple brothers from out of town who have helped me get started. Any recommendations on what to check to make sure I take care of the blown fuse problem? What are the little tabbed inserts on each side of many of the connectors called? Should I pull them out with the components, or is there a way to keep them?