Radio Shack sells both thin and thick gold plated spades ($5 for 8) and 3% silver solder ($4/1.5oz.; part no.64-013). I assume thick is better for carrying current. Live it up. Amaze your friends! Good luck.
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I have 4 Midnight cables, and soldering them in a spad is VERY HARD TO DO! The quantity of wire and the large spade makes having a high quality soldering gun/iron very important. Also the CRIMPING of the spade is very important. I used a giant 'channel lock' pliers but not the jaws, the inner rotating curve of the pliers is oval pressing down to a small barrel... and I crimped them with that. To just stick wires in a sleeve and a ton of cold solder is really not good. The latest system I've seen is to crimp a sleeve on the wires and then the sleeve is put in a spade that has screws locking down on the sleeve... A very good system... from Kimber? or a Kimber subsidy?
Hi Elizabeth: When looking for spades, make sure that they have a very robust crimping area. You should not even need to soldier. If you do use soldier it should be to add physical strength, not to carry the signal. Soldier is a very medicore conductor. AudioQuest uses a pulse welder when terminating. This method is far superior, as the huge pulse of current causes the metal atoms to commingle with the metal in the termination. Strong physical crimmping is a close second to pulse welding. That screw lock down system mentioned above sounds like it might make a good connection. Good luck! Mitch