Hello everyone, quite some time ago I seem to remember a thread about a doodad(s) that would provide power for grinders and such by using the stinger on you welder. As fate sometime steps in, the gentleman who is assisting with teaching duties at our school walked into the office this morning and plopped one of these things down on the desk and asked if any of us had ever seen one of these. He had gotten this new probably 10 years or so ago and had never used it. Noticed that it said that the grinder, or whatever sort of electrical item that you were powering, needed to be capable of DC operation(makes total sense), in other words use a grinder, drill, or whatever, that is capable of AC/DC operation. These were built by a company called "StingerPower" headquartered in Los Gatos, Cal. I have not been able to find out of their existence anymore, however. I have included a few pictures of the unit and it's rough schematic for use. We did hook it up and it would actually power up a Makita 7" grinder, the information with it says that it is capable of 15 amps of auxilary power from a stinger with the amperage set anywhere from 70 to 500 amps. Additionally it says that it is based on using the OCV of the welder, don't quite know how this would work with an engine drive, only used it on one of our shop welders. Best regards, Allan