Since the Dentron is from 40 years ago I guess that fits boat anchor. I posted this in a Swan thread but no responses. I bought an AL811H on the cheap from a guy who bought and said it blew fuses, I got it, turned it on and I put in a new 15A fuse, no problem. The old fuse was 7.5A and there was a good reason the original seller never had a problem with 7.5A and the buyer did and I didn't when I replaced with the recommended 15A fuse. Any of you know the reason? ( I do). I bought a Dentron Clippertron on the real cheap recently that the seller said was dead, it was. The fuse was good. I did an ohmmeter check on the AC cord, infinite to the inside switch, switches good, AC line cord good, as it turned out I fixed without putting a hand inside. But I did use a Variac to bring it up. Want to guess what that issue was?