Believe me, I know it all too well.
I've already put them in the just give me the answer category of OPs.
I suspect there is a high degree of correlation when juxtaposing simulator construction errors and bread boarding errors. Only thing with simulators is your not buying so many replacement parts.
That is the cost of learning. I once told a technician that I wished the price of him learning an unfamiliar system was cheaper. I had asked him to check the integrity of some connections, which he thought I was just creating unnecessary work for him, so he blew it off. It wasn't long before that there was a fire in the equipment. There were a lot of loose connections in that area (output coupler).
Dumping 800 peak amps can generate a lot of heat. The charred phenolic board and burnt 000 cable was shipped to the training center for a training visual aid when the instructors wanted to talk about preventative maintenance.