Okay, Stan, I was able to test the load - I plugged in 2 buildings and tested the unused plug: With dial set to 10 I measured around 7 volts; with dial set to 50 I measured just under 1 volt. If I understand you right, I need to multiply by 10 when using the "50 dial setting" ~ so that would put it around 7-9 volts. And, the 10 scale is one for one, so if right then that means the adaptor is indeed putting out more voltage then the 4.5 volts the buildings require. Could this be the reason why the guy on the main forum (he goes by Panther) buildings are frying?
fwiw, I noticed when plugging the adaptors back into the buildings the building lights go on for a second, then off, this with the household plug not plugged in. Does this mean anything, a capacitor in the adaptor maybe?
I have an old HO DC transformer - that I could potentially use for these buildings - it goes up 18 volts DC with lever, I believe. I also have to contact Menards as I have 4 of their adaptors.
