Curt,
I didn`t answer because we had talked about it earlier and I thought you were looking for new information. The head is an Aristo model 1212, 110 volt, 60 Hz, 240 w. The head is the black square metal box at the top. I think that is how Aristo sells it, in the metal box. You can’t see it in the pictures, but there is a small 8”x 4.5”x 4.5” heavy metal box resting on the Durst frame behind the larger metal box you can see. It has the same Aristo nomenclature plate as the larger box. On the smaller box someone (I think Michael Mutmansky) has put a plastic tape label that says “THERMO”. There are wires connecting the two boxes. The tapering gray assembly between the Aristo head and the bellows is wood. I am sorry if I was not clear about what was metal and what was wood earlier.
In the earlier exchange I think I also answered your questions about the measurement of the negative carrier location. Is there anything else I could measure or describe for you?
John Powers