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Questions: Gibson Firebird Plan

Questions: Gibson Firebird Plan

by Mike Doolin

Originally published in American Lutherie #75, 2003

 

See also,
Questions: Gibson Firebird Plan by David Riggs

 

Marc Vermeiren from cyberspace asks:

I’m searching for a plan of a Gibson Firebird.


Mike Doolin of Portland, OR
responds:

I’ve never heard of a published plan for a Firebird. It’s a Gibson solidbody that came out briefly in the ’60s and has occasionally been reproduced since then. It wasn’t terribly popular. The pickups were different than normal Gibsons, but I think Seymour Duncan makes a Firebird replacement pickup. I’d say your best bet would be to find a Firebird and trace the body shape. ◆

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Letter: Catalyzed Polyester Finish

Letter: Catalyzed Polyester Finish

by Mike Doolin

Originally published in American Lutherie #85, 2006

 

I’ve switched from waterborne finish to catalyzed polyester. Why? Hardness and speed. Poly provides the durability to which most steel-string players are accustomed. It’s basically 100% solids and cures by catalysis instead of evaporation, so it doesn’t shrink over time. I can rub out a finish after five days cure, and a year later it will look just as good.

But those qualities come at the price of toxicity and flammability. I now have a commercial spray booth with an explosion-proof room around it, and a supplied-air full-face respirator. With solvents like acetone and MEK and with MEKP as the catalyst, this stuff is not to be trifled with. Besides, it stinks to high heaven until it’s cured. I still recommend waterborne finishes, particularly KTM-9, to small-production and hobbyist luthiers and anyone unwilling or unable to make this kind of investment in finishing equipment. ◆

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Side Soundports

There’s a Hole in the Bucket

by Cyndy Burton

A Discussion of Sideports, with Contributions from Kenny Hill, Alan Carruth, Roger Thurman, John Monteleone, Mike Doolin, and Robert Ruck

previously published in American Lutherie #91, 2007

See also,
Sidewaysby John Monteleone
“Herr Helmholtz’ Tube” by Mike Doolin
“Three Holes are Better than One” Robert Ruck



Just in case we become too self-satisfied with our “discovery” of ports, Alain Bieber, in his article on lyra guitars (AL#88, p. 16), points us to the Neapolitan Gennaro Fabricatore’s ported lyras from the early 1800s. (Alain ported his own contemporary lyra guitar, too.) So we know prominent makers were putting holes in the sides of their instruments in the late 1700s, early 1800s. Many of us are also aware of Carleen Hutchins’ groundwork in the early 1980s. Her “Le Greyère” violin, with sixty-five sideports, has provided a wealth of data about violin resonances since it was made in 1982. She donated the violin to the National Music Museum in 2002. See some great photos of Le Greyère and a list of publications reporting on that research at collections.nmmusd.org/Archives/NewViolinFamily/Hutchinscheeseviolin.html.

People are sensitive about putting holes in things. Many guitarists — perhaps more classical guitarists than others — find the ports some sort of denigration, a violation of the sanctity of the guitar’s perfect form. In all fairness, we’ve met with very strong feelings on both sides of the port issue. Luckily, our customer was very open to the idea. He’s not a concertizing musician, but he’s a serious player, and occasionally he plays publicly for special events. We wanted to try ports for him because he has a hearing loss, and we thought ports would be a great way for him to hear himself better. At that time, Robert Ruck had made about a hundred ported guitars, so we figured he had worked out the kinks. He kindly advised us on size, location, and so on. We followed his lead. The result is a wonderful instrument that the owner truly appreciates. We love the feedback — the monitor effect for the player — and when we tested it in a small auditorium with an overflowing audience, we could not discern any loss of projection or quality of sound. But was it louder? Our evidence was very meager and inconclusive. Many makers are adamant that it’s louder with the ports open for both the player and the audience.

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Ken Parker’s Uncut Personal Take on the Genesis of the American Archtop Guitar

Ken Parker’s Uncut Personal Take on the Genesis of the American Archtop Guitar

as told to Mike Doolin

Published online by Guild of American Luthiers, July 2023



First, let’s note that a well developed, centuries long tradition of plucked, fretted instruments travelled to America from Europe, just like CF Martin did in 1833. He was the key figure in the evolution of the 6-string American guitar, and the importance of his work as a ferocious, persistent, successful instrument inventor cannot be overstated. Although there were other builders who did exceptional work and have had some continuing influence, CF laid the groundwork for the flattop designs we still revere and copy today.

There is no analog in the field of archtops, which have kind of stumbled from insult to injury, as I’ll try to explain. It’s my view, and you don’t have to like it, but I’ve been obsessed, and paying a lot of attention for a long time, so I hope you’ll give me your ears.

Circa 1890, brilliant oddball Orville Gibson decides to try to improve fretted instruments for his own use as a hobbyist. He played mandolins, which were becoming very popular, and he saw room for improvement and his artistic expression. He didn’t care much about the guitar, and so didn’t make many of them, maybe a dozen, some think even fewer. Orville concentrated his efforts on mandolins and harp guitars. He turned out to be a talented and prolific builder, and was active as a musician and performer. Orville had no training as an instrument maker or woodworker. He grew up on a farm in Western NY state during the second Industrial Revolution, and we all know that farm girls and boys can do a lot with a little. He moved to Kalamazoo, Michigan, a fast growing manufacturing center ripe with opportunities, full of startups and others eager to make their mark in the modern world. He was self-financed, working day gigs as a sales guy in a shoe store, then in a restaurant, whatever it took. Sound familiar? He made a close friend, Thaddeus McHugh, an expert woodworker, who may have had some training in Lutherie. Thad had a great singing voice they performed together. More on this important guy later… Orville was a good musician and although I’m sure he knew about violins, when he designed his arched mandolins and guitars, he followed his own design instincts. Some of his innovations were good, and others… well let’s say there was very little that he took from violin family bowed instrument construction.

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Intonation in the Real World

Intonation in the Real World

by Mike Doolin

from his 2006 GAL Convention lecture

previously published in American Lutherie #92, 2007



Getting guitars to play in tune has been a major topic of interest for many years, both for guitar players and guitar makers, and it has been a major source of frustration as well. During our current “Golden Age of Lutherie” the bar has been raised for standards of craft, playability, and tonal quality, as players have become more sophisticated in their expectations and builders have become better educated and more demanding of their own work. Expectations for accurate intonation have come along with all that: it’s no longer acceptable for a guitar to only play in tune for the first five frets, or in a few keys. Modern players are using the whole neck, exploring extended harmonies, and playing in ensembles with other instruments. They are looking for instruments that play in tune with themselves and with the rest of the musical world.

It turns out that guitar intonation is a huge can of worms, because it is really two topics:

▶ What does it mean to be “in tune?”
▶ How do I make a guitar do that?

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This article is part of our premium web content offered to Guild members. To view this and other web articles, join the Guild of American Luthiers. Members also receive 4 annual issues of American Lutherie and get discounts on products. For details, visit the membership page.

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