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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Why a 220v welder is as good as a 120v..listen up, I discovered this w/o electrocuting myself
You have a house.
You have no 220v outlets easily accessible. Yes you do. Even if you don't. Thank heavens for oscilloscopes. All the 120v breakers on the left side of you breaker box are 180 degrees(or Pi radians for the less mathematically inclined) out of phase with all the 120v breakers on the right side. Find a room or outlet where the lights go out when you flip off a left side breaker and plug a 25 ft grounded extension cord into it. Find a room where the lights go out when you flip off a right side breaker and plug a 25 foot grounded extension cord into it. Get a voltmeter and measure hot(little slot) to hot and you will get 240v. Totally usable up to the value of the smaller of the two breakers. You can wire nut a third cord with a 240v receptacle into the first two hot to hot and you will have a female 240v outlet wherever you may go, provided there are two rooms, one on each 120v side of the breaker box, within 50ft of each other. I discovered this accidentally with my oscope a month ago. So I say screw the dynasty, get the HTP invertig 200. I'd rather spend 5 extra minutes hunting for an outlet and triple my welding capability versus trying to get 120v to act like anything more than a wonderful tool for hampster experiments at NIMH. |