HI everybody.I bought a used PLASMARC 250 made by Telwin(B-45148-1986). It appears that the device does not have one board with electronics(the second from the bottom)(i had a pictures...).I would be grateful if I could get *missing board* & datasheets of all device .Can someone from the forum users have a plasma cutter like my Telwin ? I can not count on Telwin service -they said so to old equipment... I will be grateful for the answer.Wit