Burned bulk head connection

Way WAY back in the early 70's my 70 RR bulkhead connector failed. I just drilled it out and fed some large were through there. The ammeter, tho, itself can give trouble, and in rare cases, the welded splice can fail. I found "my" first failed welded splice in that same time period, on a friend's 68RR. I used to insist on ammeters, myself, but I finally converted mine to a voltmeter There is an old thread, somewhere, on doing so Here

Ammeter to Voltmeter...who does it?