I have a Techno Isel Gantry system. I have a spare servo, but need the Amplifier card if anyone has a spare one lying around. I can get it from Techno, but of course am looking for cheaper than $450. Probably should just pay the money and get it over... also need the chip for the ISA card in the cpu. Putting in my 4th axis... Is there a company that makes a amp that works with Techno stuff...???