acrosonic string breakage

[Andrew and Rebeca Anderson]

Dave,
Presumably you lowered the pitch on each string until it clicked and 
then pulled it up?

Andrew

At 10:02 AM 10/30/2005, you wrote:

>
>
>List:
>
>I just tuned a Baldwin acrosonic that by S/N was 15 years old, but 
>it appeared to be older.
>My question revolves around the attached picture ( as best I could 
>draw the problem ).
>The strings A2, A#2, G2, G#2, F2,F#2 and C3 all broke when doing an 
>80-100 cent pitch raise.
>I warned the owner that I could tune it to less than A440 to help 
>reduce string breakage but she wanted it at A440 so she could play 
>with other instruments.
>
>All the strings were on the bottom row of tuning pins, which creates 
>a steeper angle to the Vbar.
>The angle to the Vbar was so great, that the last coil on the pin 
>was trying to cut across the previous adjacent coil on the tuning 
>pin.  ( see pic ).
>It appeared to me THAT is why the strings broke, each one right at 
>the pin coil.
>It did NOT appear that the pins were pounded in, creating a steeper angle.
>
>My question is:
>Is this normal pin / string coil configuration for acrosonics?
>has anyone seen this before, and what might the problem and fix be?
>I'm sure someone on here knows the answer !
>
>Thanks much
>
>Dave McKibben
>
>
>
>
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