Re: Sho-Bud early eighties LDG changer mechanism.
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Margaret Earney
- Posts: 4
- Joined: 3 May 2010 1:23 pm
- Location: United Kingdom
Re: Sho-Bud early eighties LDG changer mechanism.
Having owned this guitar from new,recently during dismantling and cleaning discovered a helper spring finger assembly broken,the broken edges neatly filed on all four sides,presumably assembled at the factory and shipped like this.Would appreciate if someone could supply a replacement or have the details of a supplier.
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Margaret Earney
- Posts: 4
- Joined: 3 May 2010 1:23 pm
- Location: United Kingdom
Re: Sho-Bud early eighties LDG changer mechanism.
Margaret Earney wrote:Having owned this guitar from new,recently during dismantling and cleaning discovered a helper spring finger assembly broken,the broken edges neatly filed on all four sides,presumably assembled at the factory and shipped like this.Would appreciate if someone could supply a replacement or have the details of a supplier.
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Ian Worley
- Posts: 2119
- Joined: 14 Jan 2012 12:02 pm
- Location: Sacramento, CA
If the missing raise helper nub is the only issue with the finger you don't need a new one. That finger is probably from your second string, correct? Removing the helper spring nub on the second string finger was a fairly common mod to allow it enough physical travel to drop a full step to C#. You don't need (or really want) a raise helper on 2 anyway.
Sho-Bud style changers typical work better without raise helper springs on any strings that have both lower and a raise (and obviously do nothing on strings with no raise at all). The helper spring often ends up in a self-defeating tug of war with the tension of the string when you engage a lower, the raise scissor can tend to lift off the stop too and follow the lowering scissor, thus "helping" to raise the pitch a little and reducing the effective amount of lowering travel the changer can actually provide. This obviously creates tuning instability on the lower, as the effect of this unwanted movement of the raise scissor will vary from one pull to the next.
Sho-Bud style changers typical work better without raise helper springs on any strings that have both lower and a raise (and obviously do nothing on strings with no raise at all). The helper spring often ends up in a self-defeating tug of war with the tension of the string when you engage a lower, the raise scissor can tend to lift off the stop too and follow the lowering scissor, thus "helping" to raise the pitch a little and reducing the effective amount of lowering travel the changer can actually provide. This obviously creates tuning instability on the lower, as the effect of this unwanted movement of the raise scissor will vary from one pull to the next.