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An Inexpensive Resophonic Guitar

An Inexpensive Resophonic Guitar

by Lee Herron

Originally published in American Lutherie #132, 2017



I’ve become fascinated with slide guitars. My son-in-law is a great pedal-steel player, and we were talking several years ago about the Weissenborns. So I made a baritone version for him and one for myself. I’ve since made a resophonic guitar, slightly modifying plans from Beard Guitars and purchasing his cone, spider bridge, cover, tailpiece, and so on. All of these slide instruments turned out well with great traditional tone. When my granddaughter visited recently, she asked what my favorite song was, and we went to YouTube and pulled up the Paul Simon song The Boxer featuring Jerry Douglas on Dobro. Clearly I’m hooked on the sound.

My two Weissenborns and the resophonic each had perhaps $300 worth of material over and above the cost of typical flattops I’ve made, and just about all of it in commercial/official resonator parts. As you’ll see, a few YouTube videos pointed me towards some creative scrounging and innovative thinking that let me reduce the $300 ticket to less than $20 for resonator parts and plywood.

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A Field Guide to Mandolins

A Field Guide to Mandolins

by Graham McDonald

Originally published in American Lutherie #132, 2017



The aim of this article is to give you a broad overview of the diverse world of mandolins, and to some extent, what can go wrong with them. I will not spend a huge amount of time discussing Gibson and Gibson-style mandolins. They are the industry standard for mandolins in America, and there has been a lot written about them with lots of other information readily accessible out there on the web, some of which might even be correct. This will be more about other sorts of mandolins that a customer might bring to you.

Instruments called mandolins (or in Italian, mandolino) appeared in Italy in the middle of the 17th century (Photo 1). They were small, in fact tiny, lutes. This photo of Italian builder Carlo Ceconni with one of his mandolins gives you a sense of just how little they were (Photo 2). These mandolins are very lightly built, with the soundboards a little over 1MM thick and string tension of around 3KG per string. Scale lengths were 11.5˝–13.5˝ (29CM–35CM), which was likely to have been determined by the pitch standard of where the builder lived. It came down to how high the gut top string could be tuned in any particular climate. They were tuned in fourths with four, five, or six double courses of gut strings. The 6-course tuning, low to high, was g b e´ a´ d˝ g˝. These are the instruments for which Vivaldi wrote his mandolin music, and I am told that the mandolin parts in those concertos falls much more naturally under the left hand with the tuning intervals mostly in fourths rather than fifths.

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Soundboard Construction of Vinaccia Mandolins Around 1900

Soundboard Construction of Vinaccia Mandolins Around 1900

by Alfred Woll

Originally published in American Lutherie #143, 2021



It is presumed that the Neapolitan mandolin was developed mainly by the Vinaccia family toward the middle of the 18th century. At that time, the instrument was strung with low tension gut and metal strings. Two high braces, one above and one below the soundhole, were strong enough to stabilize the soundboard which had, in addition, a distinct cant and a slight transverse arch. The cant and arch were important features of the soundboard to withstand the pressure exerted by the strings on the bridge.

The very early Neapolitan mandolins had been rather small. The width of the soundboard was approximately 165mm at the cant. But in the following decades the size of the soundboards as well as the bodies increased. Another famous Neapolitan mandolin maker, Giovanni Battista Fabricatore, built mandolins with larger bowls. In 1793 he added a third brace between the bridge and the second brace. He also strengthened the soundboard with a longitudinal spruce reinforcement running along the center joint from the third brace over the cant to the tail block, and began using a fingerboard plate, which is a transverse spruce reinforcement on the underside of the soundboard in the area of the wooden frets. These four innovations — larger body, third brace, center reinforcement, and fingerboard plate — are used in Italian lutherie to this day. However, his improvement received little attention at the time, due to rapidly declining interest in the Neapolitan mandolin after 1800.

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Let’s Catch Up With Graham Caldersmith

Let's Catch Up With Graham Caldersmith

by Juan Oscar Azaret

Originally published in American Lutherie #132, 2017



Hop on a plane in Boston. Fly twenty-seven hours to Sydney, then connect on a prop plane to Port Macquarie on the coast of New South Wales. Rent a car (no, the steering wheel is not on that side, dummy), and drive 60KM southwest. (Stay to the left, the left, the LEFT!) Oops, here comes a traffic circle — drive around clockwise, cars on your right have the right of way, remember to exit left, and stay left. Why is that left wheel always grabbing the shoulder... where the heck is it, anyway? Now out of the city (whew!) and on beautiful Australian farmland — rolling green hills in the mild August winter. Past the logging town of Wauchope and the hamlet of Byabarra. The road narrows to a winding switchback climb up the steep slopes of Bago Bluff, and finally we find ourselves on a high plateau of rich farmland in the town of Comboyne, NSW, population two hundred.

Comboyne is the home of luthier Graham Caldersmith and his partner Angela MacPherson (Photo 1). On a recent trip to visit our son in Australia, I took the time to spend a delightful day with Graham and Angela in their enchanting home/workshop/tea house where I learned much about lutherie and acoustics, and enjoyed their wonderful hospitality.

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Chalk-fitting Guitar Braces

Chalk-fitting Guitar Braces

by Stephen Marchione

from his 2017 GAL Convention workshop

Originally published in American Lutherie #140, 2020



First, have a plan. Know what you’re making. It seems like an obvious thing, but sometimes people start a guitar without a good idea of what the brace layout will be. When I design a new model, I’ll often get a piece of aluminum flashing and lay out a bracing template. If you’re building an historical model, you can transfer the blueprint to a template of aluminum or plexiglas. This gives you a clear idea of what your braces are supposed to be doing, and it lets you be sure that the braces end up where they were designed to go. Photo 1 is a closeup of one of my bracing templates. I use the little holes to make pencil marks on the soundboard.

On a classical guitar, a lot of builders push the big harmonic bars down into the solera, or dished workboard. But that can cause distortion of the top. Even on a Spanish guitar, I take the time to chalk-fit the brace. That gives a better structure with less stress. I highly recommend it.

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