Look at how this old Miller is made.

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I bought this old welder for $50.00 because it came with 75 feet of number one leads in like new condition. After playing with it for awhile I noticed it had an outstanding arc.I decided to take the cover off and give it a good cleaning, I couldn't tell what was what as it was covered with an inch of white dust.After cleaning it looks to be in good shape. Somethings I noticed:It's all copper wire, probably why it welds so good.It has one heavy duty rectifier:And it has a square box under the fan that I have no idea what it is?does anyone know what the box under the fan is, I'm guessing it's a hot start.Any help is appreciated Attached Images
Reply:That's a capacitor under the fan. It also looks like the rectifier is selenium instead of diodes (one of the reasons it's so big). One word of warning is don't breath the smoke if the rectifier ever blows.Millermatic 252XMT 304'sDynasty 280DXHypertherm PowerMax 1250Miller Trailblazer 302 EFIOptima PulserXR feeder and XR Edge gun and more athttp://members.dslextreme.com/users/waynecook/index.htm
Reply:Originally Posted by irish fixitThat's a capacitor under the fan. It also looks like the rectifier is selenium instead of diodes (one of the reasons it's so big). One word of warning is don't breath the smoke if the rectifier ever blows.
Reply:Originally Posted by akpolarisAnd don't screw around with that capacitor
Reply:Originally Posted by akpolarisAnd don't screw around with that capacitor
Reply:They're all wrong, it's a extra 50# can of 7018 for emergency purposes only. Kinda like hiding money in your wallet!I hate being bi-polar it's awsomeMy Heroes Have Always Been Cowboys
Reply:Originally Posted by weldermikeThey're all wrong, it's a extra 50# can of 7018 for emergency purposes only. Kinda like hiding money in your wallet!
Reply:That looks like the Miller 180 Amp AC/DC. If so,I have the Airco version of that machine. Sliding shunt block and plug in lead connectors with carry handles on the sides...tough old welding box. You did great on that deal ! Great welder for cheap and "free" leads...nice !
Reply:That is something else, cool to see thanks. Not going to find that transformer at the radio shack.Magazines have issues, everything else has problems
Reply:Originally Posted by BradTNThat looks like the Miller 180 Amp AC/DC. If so,I have the Airco version of that machine. Sliding shunt block and plug in lead connectors with carry handles on the sides...tough old welding box. You did great on that deal ! Great welder for cheap and "free" leads...nice !
Reply:Originally Posted by kctgbYes you are correct, it's a 180 AC/DC welder. I was doing weld comparisons to my miller thunderbolt tonight and this old welder walks all over the thunderbolt. I wish they would build new welders like this old Miller.
Reply:Originally Posted by copeWe couldn't afford them if they did.  Even the 225 amp ac crackerbox Miller from the 1070s is a better built all copper machine.
Reply:Originally Posted by cope...Even the 225 amp ac crackerbox Miller from the 1070s is a better built all copper machine.
Reply:Originally Posted by obsolete_aokWilliam, Duke of Normandy, was a stickler for all-copper construction. Possibly this was a Christmas present from the Millers for his coronation gala in 1066 ?
Reply:Miller & Selenium rectifiers:http://www.millerwelds.com/about/1950.html"USMCPOP" First-born son: KIA  Iraq 1/26/05Syncrowave 250 w/ Coolmate 3Dialarc 250, Idealarc 250SP-175 +Firepower TIG 160S (gave the TA 161 STL to the son)Lincwelder AC180C (1952)Victor & Smith O/A torchesMiller spot welder
Reply:Originally Posted by OldendumMiller & Selenium rectifiers:http://www.millerwelds.com/about/1950.html
Reply:I have the Sureweld SU-185 version of that welder. That selenium rectifier went out on me last week when I noticed I wasn't the only one making arc welding noises.  I have ordered some bridge rectifiers to replace the old rectifier. It probably isn't worth the effort monetarily but it has been in our family since the early 70's and I hate to see it scraped.
Reply:Originally Posted by kctgbYes you are correct, it's a 180 AC/DC welder. I was doing weld comparisons to my miller thunderbolt tonight and this old welder walks all over the thunderbolt. I wish they would build new welders like this old Miller.
Reply:Weld with a Miller 330ABP sometime. I got over over 100 lbs of copper out of one when I scrapped one of themSent w/ Tapatalk using Swype, pls excuse typos now FreeTiger Sales:  AHP Distributor    www.tigersalesco.comAHP200x; AHP 160ST; MM350P,  Spoolmatic 30A; Everlast PowerTig 185; Thermal Dynamics 60i plasma.  For Sale:  Cobra Mig 250 w/ Push-pull gun.  Lincoln Wirematic 250
Reply:My father just picked up the airco version of this welder a couple weeks ago at a shop sale, talk about a nice old welder. Nice score man!Millermatic 30aMillermatic 210Miller thunderbolt 225 ac/dc/ccMiller HF15-1-wg tigLincoln ranger 10(honda powered)Cebora 175 mig Too damn many tools but oddly not enough......