Please stay isolated. Things won't get back to normal until we have beaten the virus and the only way to do that, is to prevent it from spreading.
Märklin 6015 Booster
I decided that since it is a bit of a pain to get decent size wires into the Märklin 6015 booster connections I would make a permanent connection that could simply be plugged in. I found that the harness from an old PC power supply had 4 leads of 18 AWG wire that would make a nice connection. As luck would have it, it also has a red a yellow and two black lines which I can easily treat as brown! I cut the wire a short distance form the plug and twisted the black + yellow leads as well as the black and red leads to reduce electrical interference. After stripping the ends I primed them with solder and inserted them into the booster connections. I then dropped some solder on the ends to help make the best possible connection. The last step was to fasten all four wires to the small plywood base I had cut for the booster so that any tension on the wires would not stress the connections.
I can now screw the base firmly wherever I need the booster and connect with a matching PC power supply female.
I intend using a female 'Y' that will give me an additional set of wires allowing a nice ground bridge to the IB nearby.