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Regal resonator guitar Modifications performed by Mitch Nelson, Chicago, IL Mitch is a player/luthier/repairman and a PowerPoint Presentation
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Regal resonator guitar Modifications performed by Mitch Nelson, Chicago, IL Mitch is a player/luthier/repairman and a - PowerPoint PPT Presentation


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Regal resonator guitar Modifications performed by Mitch Nelson, Chicago, IL Mitch is a player/luthier/repairman and available for mod-jobs Contact: mitchll_nelson@yahoo.com. Regal – before modifications Saddle is critical to transferring string vibration/energy to cone!

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slide1

Regal resonator guitar

Modifications performed by Mitch Nelson, Chicago, IL

Mitch is a player/luthier/repairman and available for mod-jobs

Contact: mitchll_nelson@yahoo.com

slide2

Regal – before modifications

Saddle is critical to transferring string vibration/energy to cone!

Note the relatively low height of the maple saddle which results in less than

ideal string tension and does not maximize the load on the cone. Saddles

with an ebony or synthetic cap (e.g. ebonex) are harder and more

consistent than the maple saddle used here and improve transfer

of string vibration to the cone resulting in better sound.

slide3

Regal before modifications: notice relatively low action at nut; s/b

3/8” or 7/16” from underside of strings. Low action makes it difficult

or impossible to use dobro capo!

slide6

Upgrade components

Quarterman cone, ebony capped saddle, bone nut

Remember – it’s not all about the parts! Attention to detail is critical.

Assuming a professional set up costs around $225, it’s around $75

for parts and $150 for knowing how to put them together!

slide9

Regal before modifications – think of the cone as a speaker which

operates most efficiently when it receives maximum energy via

string vibrations. Both the height and composition of the saddle

play a critical role in “loading” the cone.

slide15

Regal before modifications

Notice that the soundwell (made of plywood) on this

guitar was delaminating

slide18

Regal before modifications – relatively low height of nut

results in less-than-ideal playability and responsiveness;

action best described as “mushy”

slide20

Sanding down new nut for a snug fit into guitar. Note – the sanding

process is not the most pleasant experience. Sanding down a bone

nut creates a strong odor which is unmistakable! It’s a time

consuming process to get just the right fit for a bone nut!

slide22

New bone nut is snug fit and 3/8” high, which reduces the “mush”

factor! The next step in the process is cutting string slots.

Cutting a good string slot is not as easy as it might seem! Attention

to detail is absolutely critical; requires “know how” and the

right set of tools

slide23

before/after - ebony capped saddle (on right). Ebony is harder/more

consistent wood than the original maple saddle. Improved height

dramatically increases angle/tension of strings going to the

bridge which effectively “loads” the cone

slide26

Final assembly – it is absolutely critical that the edges of the cone

be in a relaxed state, and sit on the internal ledge of the guitar

without being too snug – and that each of the spider legs lay

perfectly flat on the cone. The edges of this guitar had to be

routed in order to fit the Quarterman cone!

slide27

Regal – post mod-job

Results are vastly improved playability and responsiveness, as well

as significant improvements in volume & tone, especially

clarity and definition of notes