Hi . Im looking for L-Tec Compact aircut 25 diagram for my Telwin plasmarc 250 (I know its strange but both of units are similar construction)Telwin forgot about this machine - have no diagram they sad its to old ...What is cost of one of parts that L-Tec plasma cutter -I mean HF transformer *electronisches zundgerat SIG 3.2 *.Its grey box made in west germany with 4 pins (marks HB HO TO T24 ) Regards Witek from Poland