I have sold my Atma-Sphere amps (sadly) but I still have a pair of Speltz autoformers that didn't need to be included in the sale.
The Speltz autoformers I have are "naked" (not in the wooden boxes). They are the more current dialetric (clear thin coat) with improved copper quality and not the original multi-colored dialetric. I'd like $300 plus shipping (and PayPal fees, unless you send payment as gift).