hi. my question involves a 240 to 12v transformer. since im using it to step up voltange now ill refer to the 12v side as primary. if you touch 12v to the primary you dont just get 240v but something alot higher maybe 3kv as a spart can jump from the secondary termals about 3mm. im wondering why this is, and why i have never seen it listed as a problem on peoples inverter disscussion. if i feed a square wave into the primary- instead of 240v out, wont i get 3kv out?