[pianotech] Acrosonic Bass Bridge

Rob McCall rob at mccallpiano.com
Sat Aug 27 14:40:36 MDT 2011


Greetings,

I tuned a 1964 Baldwin Acrosonic this morning.  They complained that about 3-4 notes made a funny noise.  Further inspection revealed cracks and shearing of the bass bridge. The first 10-12 strings are affected.  Everything below that is not affected... yet. :-)  Since the pitch was 20 cents low, I tuned it where it stood so as to not put even more pressure on this bridge until I can find a fix for it. I'll bring it up to pitch once the fix is in.

The rest of the piano is in pretty good shape. They don't want to spend too much but they are willing to spend a moderate amount to have it fixed.

So, I've heard of using epoxy, etc. to fix cracks and such, but this seems to be quite a different beast.  What is the best method to fix this? 

The rest of the bass bridge below those 12 notes or so seems just fine with tight pins, etc. It also appears to just affect the cap.  Any and all ideas are appreciated...

Thanks,

Rob McCall

McCall Piano Service, LLC
www.mccallpiano.com
Murrieta, CA
951-698-1875









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