I'm new to the board. Had games for last 25+ years. I just ordered some Kortek monitors to replace some of the old WG's in some of my classic games. I would have used Vision Pro monitors as I did last year to update 10 monitors, but Happ doesn't have them anymore. Anyway, bought these Korteks from another big supply house and started installing. I replaced 4 monitors and 3 died within 1 hour. Now they just squeal and no picture. I am installing these the same way I did the last 10 vision pros. What am I not doing right? I've been using isolation transformers. I'm at a loss.
