A small decent transformer (nothing big or expensive, just avoid cheap) is all that is needed, no hum, absolutely transparent. (I use Amazon because easy return IF ...)
My only concern is to forget my JVC TT81 is 100 v, and forgetting to put the transformer in line somewhere. My memory sucks.
plugging 100v TT directly to 120v. Anyone know if that just wont work properly, or if serious to avoid as damage likely?