Alright, so I'm building the singing arc that's in this schematic. http://www.volny.cz/jmartis/flyback_singingarc.png Now my first problem is obtaining a 60 volt input. Will I get a usable 60 volts (consider current spikes) if I bridge rectify a 120 volt wall current, obtaining a -60 and +60 line out, and then just take the +60 output lead as my source? And my second question is, why does the schematic use different line notations (one line, and many lines) to show that an output goes to ground? Is there any reason for this?