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View Full Version : Proper bridge height for 1920 h2 mandola?



BlueMountain
Dec-19-2006, 8:59am
I'm trying to restore a Gibson H2 mandola made around 1920. It didn't come with a fretboard. I bought one from Roger Siminoff, put in frets, put on binding, inlaid the position markers, and it looks fine. I'm ready to glue it on the mandola.

But last night it occurred to me to check the bridge height (it came without a bridge, too). I sat the fretboard on the neck (I'm using a couple registration pins to get the positioning right), shimmed it at the 12th fret at 2 mm., and used a straight edge to find out the height of bridge I would need. Looks like the height is very close to 3/4". Is that appropriate for this instrument, or too low? It's possible that the guy who took this apart sanded down the neck on the front. I know the lower string break angle will decrease string pressure, which is perhaps nice for the instrument, but affects the sound. Will a 3/4" bridge give me enough of a break? Thanks.

mythicfish
Dec-19-2006, 9:52am
I have a 1913 H2 which I recently compared with an H1 of similar vintage. Both have one piece bridges. My bridge height is about .720 and the H1 bridge is .840. The H1 is a bit brighter, possibly because it's topped with a bone saddle. The break angles are nearly identical. Both instruments have superior tonal qualities. I believe that the tonal qualities have much more to do with the carving of the top than the break angle. I've heard that there is a point where the break angle is excessive and restricts vibration of the top plate.

Curt

BlueMountain
Dec-19-2006, 2:42pm
Thanks, Curt. I'm much relieved to hear it.