Here's a rather odd duck from '58 - a Coronado automatic record player that plays large spindle hole 7" records at either 16 rpm or 45 rpm. The amp is a typical one tube model and the changer was made by VM. During the mid-to-late '50's, there was a company who made 16 rpm talking books that were on 7" records with a large spindle hole, just like a standard 45 rpm record.
I have not done any work to this player; but, it should be an interesting repair project.
From what I can tell about the VM 7" changers; they shut off after the last record and they retract the idler wheel when not in use (unlike the RP190 changers from the same era).
