I blew a couple of these fuses doing the TMCC buffer. I tap off the earth ground from the barrel of the P/S with a tether with a male and female 5.5/2.5mm barrel jack jumper. A couple of the tethers had a short when you flexed them and took out the fuses. I had to fix one for a customer of the TMCC Buffer with a PTC. I zapped one of mine in the testing as well and had to fix that one. This latest one was working fine, but I figured since I had it open, I might as well make any fix permanent.
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