Krishot.eu

 

Mandolins


F 17 / A 17
 
Krishot F/A17

The story of my new F17 mandolin started in Baja California, Mexico in 2014. Apart from fishing in the Sea of Cortez, I also had the opportunity to play some bluegrass music with musicians of the local American community. It was there I met Wolf, an experienced luthier and old-time fiddle player, who lent me his 1916 Gibson A3 mandolin for a period of two weeks. Until then I had never examined these instruments with a short neck and an oval soundhole which were produced before the innovations of Lloyd Loar very closely, but this mandolin surprised me very pleasantly. Its sound was interesting with a focus on the mid-range of the spectrum and it behaved beautifully in front of a microphone. I took the time to study the details of the construction of this mandolin and have thought a lot about how to implement some features of its construction on an A5 or F5 style mandolin. I built the first three prototypes in 2017on which I was able to prove my assumptions.

The current Krishot F17 mandolin still has a very similar visual appearance to the F5 of Lloyd Loar although it is also influenced by the shape of older instruments as well as by the Gibson F7 that was built in the 1930s (this is a relatively lesser-known model even though Bill Monroe recorded some of his exceptional earlier work on an F7). I have not finalized the shape of the A17 model yet, but it will feature the same basic parameters as the F17: Spirit varnish, 14 15/32" scale lenght, S-shaped sound holes with white or maple binding, recommended strings D'Addario J74 or J73.

1916 Gibson A3
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1916 Gibson A3
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Gibson A3 (1916) Mexiko 2014, from your left Big Jim, my brother Pavel,
A3 and I, Mike, Wolf, Bob


 
Standard F17

White ABS binding, Adirondack red spruce top, maple back, sides and neck, X bracing.

Standard F17
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Standard F17
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F17

Red cedar top, maple sides, back and neck, X bracing, ABS laminated binding on the side view.

F17
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F17
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F17 Ladie's

White Adirondack spruce top with genuine golden glitters in the spirit varnish, maple sides and neck, alder back, X bracing, plastic abalone binding.

F17 Ladie's
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F17 Ladie's
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F17 Deluxe

Italien spruce top, maple back, sides and neck, X bracing, laminated ivoroid binding, bow tie MOP fingerboard inlay.

F17 Deluxe
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F17 Deluxe
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A17 (the first try)

Sitka spruce top, maple sides and neck, alder back, X bracing, ABS white binding, block MOP fingerboard inlay.

A17 (the first try)
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A17 Massimo Gatti

Red spruce top, maple back, sides and neck, X bracing, koa binding.

A17 Massimo Gatti
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A17 Massimo Gatti
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GARNET
 
Garnet F

( Czech Garnet = blody red pyrop, my favorite typical Bohemian gemstone )

Garnet F is the modern mandolin, with traditional prewar Gibson shape. It has a more bassy, but still well balanced warm sound, because of a little bit different construction and choice of the wood. Spirit varnish, radiused ebony fingerboard, 17 – 22 frets, „Flower Pot“ inlay with garnet aplication or vine and fern inlay.

Garnet F Flowerpot+
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Garnet F Vine inlay
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Garnet F fern
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Garnet F Vine
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Garnet F Flowerpot
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Garnet F sunburst
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Garnet F black face
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Garnet F blonde
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Garnet F
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Garnet F
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Garnet F Telluride

Garnet F Telluride
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Garnet F Telluride
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Garnet F Black Beast

(mahogany, wild cherry, koa or other similar wood instead of maple, dark brown oil varnish)
Garnet F Black Beast
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Garnet F Black Beast
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Tip:

Prohnutí krku
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Prohnutí krku
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Running the length of the neck there is a simple truss rod, and at the end a hexagonal M5 (8mm) nut. This assembly allows customization of the neck position. Some players prefer a straight neck, but for an aggressive bluegrass picking style a slightly curved profile can be more advantageous. The curve reduces string buzz and rattle against the frets, especially when the player is "chopping" chords.

With a new mandolin, it's best to begin with the nut only slightly tightened. During the first few weeks monitor the neck curvature by pressing the strings against the fretboard at the first and fifteenth fret. The ideal curvature will leave a slight gap between the strings and the level of the frets. To attain this shape, gently tighten the nut. To return the neck to its original shape, it's best to carefully pull the neck back with one hand while adjusting the nut with the other. Don't use force!


ANY SAMPLES FROM LAST YEARS

Anthony Hannigan F

(yellow cedar/maple, black face, oil varnish)
Anthony Hannigan F
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Standard F Mandola

(423 or 401 scale lenght)
Standard F Mandola
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Standard F Mandola
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Standard F - Left Handed

Standard F - Left Handed
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F-5 Fern

Mother of Pearl / Abalone Inlay
Spirit Varnish
Sitka Top
F-5 Fern
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F-5 Fern
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F-5 Fern
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Tip:

In the Central European conditions, the usual relative air humidity is 60-70% throughout summer months, compared to 30-20% throughout winter. Naturally, this shows up on the instruments with arched front by a temporary increase of curvature during the more humid months outside the heating season. On the mandolin, this difference might come up to 1.5-2mm. This is why there might arise a need for compensating these changes by using an adjustable bridge. Using a humidifier (even a mid-size raw potato placed into the case might do) during the winter can help, but it will not eliminate this effect completely.


Light Amber Sunburst

Spirit Varnish
Yellow Cedar / Slovakian Rock Maple
Light Amber Sunburst
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Light Amber Sunburst
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Light Amber Sunburst
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Light Amber Sunburst
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Fancy Vine Inlay

F-5 Fern
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F-5 Fern
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A Model


A Model
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A Model
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A Model
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Blonde Amber F

Spirit Varnish
Mother of Pearl / Abalone Inlay
Red Spruce / Flat Sawn Big Leaf Maple
Blonde Amber F
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Blonde Amber F
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Blonde Amber F
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Blonde Amber F
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A Mandola

Sitka Spruce / Big Leaf Maple
Nitro Finish
A Mandola
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A Mandola
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A Mandola
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A Mandola
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Blonde Amber F

Mother of Pearl / Abalone / Czech Garnet Inlay
Sitka / Slovakian Maple
Blonde Amber F
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Blonde Amber F
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Blonde Amber F
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Telluride F

Special Selected Wood
Hide Glue Body Construction
Ultra Thin French Polished Spirit Varnish
Mother of Pearl / Abalone / Czech Garnet Flowerpot
Block Fingerboard Inlay
Telluride F
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Telluride F
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Telluride F
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Telluride F
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Telluride F
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Telluride F
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Telluride F
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