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Semi Hollow UBass

Hi,your bass uke look very cool now !

Regarding the bass tuning pegs problem,
I've resolved it making my own specific wooden pegs.
The standart bass tuners was too heavy.
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You will probably need some kind of buffer to get any output from those Piezos. I don't think the circuit you posted will do that. They're easy to make however. This is a cool build!
 
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Thanks guys!

@gsnad2000 - The scale length is 52,6 cm a little bit less than 20" 3/4 (Kala 21"). The total length is 81 cm approx 32", much longer than an electric Kala. The reason is, I want more resonating, because there is a piezo disc under the thin top. So the positioning of the bridge should be near to the center of the top.
 
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