Hello all, I'm trying to restore a Miraphone that uses the rear
mounted Columbia tone arm horn assembly unit.  I need to modify
a Columbia turntable as the original one is long gone.

Can anyone help me with some details of the motor drive spindle?
I do know it is not like a Reginaphone.  I do not have the machine
in my possession so pictures and blueprints or dimensions would be
very helpful.  Thanks in advance!

Darren J. Wallace