Everready #497 batteries, seven in series. Dad knew i had the one hand rule down cold. On Jan 30, 2013 8:10 AM, "Sean Breheny" wrote: > As a teenager, much to my delight, I discovered this ability of an > infinite number of 9V to interconnect in this way. Alas, I had only > about 30 of them but I still managed to use this stack of 20 to 30 as > the B+ supply for a triode vacuum tube circuit. I was _extremely_ > careful with it and didn't leave the entire stack connected for very > long. I did not try shorting it as the guy in the video does. > > The guy in the video does seem, to me, to appreciate that there IS a > danger. I think what he does not realize is the importance of using > proper test equipment and test leads, as Russell points out. Also, I > hope that he was wearing good eye protection because the energy > involved could easily have ruptured one or more of those 9V batteries > when he shorted it. I think one thing that saves him is that even > fresh 9V batts have a fairly high internal resistance and these were > not fresh batteries. > > Sean > > On Wed, Jan 30, 2013 at 9:00 AM, RussellMc wrote: > > An insane You tube 'demonstration' of the results of series connecting > 240+ > > 9V "PP3" cells. > > > > The commentator has absolutely no idea whatsoever that he is poised on > the > > brink of death throughout the whole video. > > > > AND, his resul;ts are stunningly feeble, considering he has over 2000V = on > > hand. > > Apart from some nicish arcs. > > Here, stand aside, let ME show you what you can do with 2000 V ... :-) > > > > http://www.youtube.com/watch?v=3D8hwLHdBTQ7s > > > > DO NOT try this at home. The clip lead insulation could rupture, the > > surface could track, random anythings could explode with immense violen= ce > > and throw misc material at highh velocity. Measuring 990 V DC on a semi > > random digitial multimeter AND holding the leads. Such luck this guy ha= s. > > > > If you can educate any of the up and coming generation that such things > are > > able to be lethal at any moment please do. > > > > > > Russell > > > > Ref: Iain M. > > -- > > http://www.piclist.com PIC/SX FAQ & list archive > > View/change your membership options at > > http://mailman.mit.edu/mailman/listinfo/piclist > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .