Buddy of mine inherited this 1970 Miller Thunderbolt. More in comments : r/ Welding
Miller thunderbolt 225 ARC welder machine - Welding & Soldering Tools - Greenville, South Carolina | Facebook Marketplace | Facebook
225 Amp 1.5 Miller Thunderbolt 225V Style HF-6 ARC WELDER, 225V AC, ID#13808, make Miller, model Thunderbolt 225V Style HF-6 for sale - and other used Miller Thunderbolt 225V Style HF-6, new
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How to get a Miller Thunderbolt 225 up and running? | IH8MUD Forum
Miller Thunderbolt AC/DC Arc Welding Power Source BigIron Auctions