Hello All, I recently added this Optimus 1550 to my collection, the lever style preheater really sealed the deal for me. Is it safe to assume that the lead seals for this lamp should be the same as a Pmax or clone, or at least close enough that they would work? I really like the looks of this preheater. The operation is simple enough but how does the thing actually work? From my uninitiated eye it appears to be a flat plate on the inside with no sign of the semi-microscopic holes I'm used to on the Pmax. It operates pretty good but as there was a bit of buildup in the tank and it sputtered about a bit so it'll need a deep cleaning. I've yet to pull it from the tank and cannot find any actual pictures or drawings of what I'll find inside.