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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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High voltage capacitor needed & questions
Last week Ernie Leimkuhler held a mig welding tutorial at Grant's
place ( Thanks again Grant and ernie!). Ernie told me that the high voltage caps in the high frequency circuit go bad and it is hard to find replacements for them. I had noticed that something was dripping on the floor underneath the Miller Goldstar welder. I searched in without success for the source of the drips. Then yesterday I found the source while wiring in an extra relay and receptacle. The relay connects the receptacle to 115 volts which then powers up the water cooler for tig welding. The source is the high voltage capacitors. some kind of oily substance is coming out of them and dripping down the red phenolic mounting board. Ernie was right, these caps are hard to find. In fact, using google tonight to find these caps was fruitless. They are mica capacitors. Can types other than mica be used? And can they be paralleled to increase the value? Is there a better type than mica? And finally, does anybody here have some to sell? Thanks, Eric R Snow |
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