[Doug Houston]

Possibly, I can shed a ray of light here.

During WWII, a resident Philco engineer here in Detroit, gave me a Philco changer and a U-2 speaker that he'd had laying around. Why the changer was removed from a set, I have no idea, but I wasn't about to ask silly questions! It was the Webster-Chicago 3 post changer that was used by Philco, Stromberg-Carlson, Magnavox and Zenith in their upper level models. It made extensive use of die castings in its construction. That's why you see few, if any of these changers today. All companies except Philco used crystal pickups. Philco had the BOL pickup, of course. It was a nice changer, but tricky to keep in adjustment.
The changer, as with others, was set up for installation of a record cutting option. Some of the W-C changers had rim drive turntables, and others (as Philco) had gear drives.

I recently found one of these changers that I'd like to use in a prewar Magnavox that I have without a changer, but broken parts make its use impractical just now.

The other 2 post changers of '41 were good changers, and most still work O.K. I believe that Philco's were done also by Webster-Chicago.