You can put a 50 motor in a 30 box. The only issue you will have is the spring that holds the horn up, it is in a different place for the 30 and the 50. The later metal motorboards are made universal so you can put the double spring or the single spring on then and the two spots for the brass hook that hold the spring that supports the horn are drilled and tapped.
The son of the original owner of a 30 had me replace his broken metal motorboard. I took a 50 bedplate and installed it with two springs and relocated the hook. I swapped out the ID plates which were both on the motor board and after I was finished the only way you could tell was the second spring barrel. Steve > From: [email protected] > Date: Tue, 23 Feb 2010 22:34:21 -0500 > To: [email protected] > Subject: [Phono-L] Amberola question on fit. > > I've just won what I hope is a restorable mechanism with mounts and a real > tough horn for an amberola 75. > > I know the 50 and 75 cabinets were larger than the 30, but wondered if the > 30 mounts and horn were used would the 75 works fit in the 30 cabinet. > > There is a kind of tough 30 cabinet and horn on the bay now but if it will > fit could still keep looking for a better cabinet. I think chances of > finding a good 30 box is better than finding any 50 box. > > > _______________________________________________ > Phono-L mailing list > http://phono-l.oldcrank.org _______________________________________________ Phono-L mailing list http://phono-l.oldcrank.org

