Hello Folks, I have a couple of CRE-55001 HO Train Engineer Receivers. I was using them in G-Scale railtrucks, and they worked fine for those. But I no longer have any AristoCraft/Crest first-generation R/C stuff, so these are headed for feeBay. Can someone tell me if these are 27mHz or 75mHz? I don’t recall… those brain cells seem to have faded away Also, any idea what I should ask for them? Many TIA! ~ Rik