[QUOTE=mandolinman2;1346290]
I have #539 dated 6/4/90 and can say for sure it has no truss rod. Maybe Givens went through a period of putting truss rods in some mandolins and not in others--but since yours predates mine it seems plausible yours doesn't have one either. I talked with Greg Boyd before I bought #539 because I was worried about just this issue; he reassured me how to handle things should it come up. #539 has its 25th anniversary next year and it's rock solid. One of the best mandolins I've ever played.
Well, DO you have a truss rod? Just pull out the end pin and look.
Measure the fret tang and get frets with slightly larger tang, couple of thousands. I will fix the bow, yes compression fretting works. just did it with a '28 Martin with bar frets brought the neck back to perfect. If you have to plane the fingerboard, but this should work fine.
THE WORLD IS A BETTER PLACE JUST FOR YOUR SMILE!
Don't confuse the effects of bar frets with the effects of T frets. We can force a back bow like you can't believe into a neck with bar frets, compression fretting with T frets is not the same and not as effective. It can help in situations where a little too much relief is present, but the effects can end up being temporary. It is a difficult thing to control, compression fretting. I've done it a few times, but I generally try to avoid it because it is unpredictable.
John Hamlett
www.hamlettinstruments.com
I have also taken out back bow with fret tangs larger in the T frets on an old 1800's parlor, saved me from doing a neck reset. Also did it recently with a 49 Martin T frets with larger tangs will move the neck. If it is severe and needs more well then remove the fingerboard and reglue, that has helped several times in the past too. If that doesn't work get out the plane. I feel if you can straighten it without removing wood all the better.
THE WORLD IS A BETTER PLACE JUST FOR YOUR SMILE!
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