Yet again I pushed my Microwave-Oven-Transformer stick-welder to the limit and burned a winding. I had to put a lot of welds into the spade anchor and I had no time. So I rented a Kemppi inverter welder. Wow, it was pure joy to weld. The arc was stable, it made almost no sound and had a very stable arc. Plus you could weld 3 mm electrodes indefinitely.