[GreenKeys] GreenKeys Digest, Vol 99, Issue 35

[Jim Haynes]

On Sat, 21 Apr 2012, John Nagle wrote:

>
>    A synchronous motor can be substituted for it if desired.
> All Model 14 and 15 motors are interchangeable, from 1924
> to 1959.
>
However, prior to Model 28, the gear sets are different between sync and
governed motors.