I just snagged a 61 that’s in not too bad of condition, minor surface rust and such. I wanted to test it out, eBay purchase. It got up to temp pretty quick, it was only on for about a few minutes the shut off. It has the old style nomex type power cord, no signs of heat damage or melting. Both ends were pretty darn toasty after turning off. Is that common? The thermostat spindle has some radial slop in it, ordered another one from reading old posts. Wiring looked pretty new, from an initial look. Sorry if this is basic knowledge, I’m working on that.