Hi, I have been teaching welding technology for the past eight years. During this time technology has moved on in the form of welding equipment becoming smaller and lighter using inverter and rectifier technology. I much prefared the old fashioned welding sets, which were mainly oil cooled transformers, I believe that they are more reliable than the new type of welding equipment and on the rare occasions when they broke down repairs were cheap and easy. I find that teaching my specialist subject using the new equipment is becoming bogged down by spending too much time talking about these new and complicated welding sets. I think that this time would be better spent actually welding. Are there any other welders out there who feel the same or is there a welder who can change my opinions?