For Sale: Tripplite IS500 isolation transformer in really good condition. It has been used for less than a year and just sat on the floor the entire time. Extremely solid, good heft. This is the very same unit suggested to use by Steve in the Decware manuals (at least the SE84UFO). Current prices for these units are a bit all over the place but around $250–350+.

Asking $175 with shipping included for Decware community (which is significant because the thing is damn heavy).