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jurkbox73
Guest
would it be possible to convert a child's accordion bellows to test reeds for tuning ie tuning table?.
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It depends. What do you want go test, other child-sized accordions? If so, then yes. You may run in to issues if you wanted to test the deeper reeds of a full sized accordion and run out of air before the sound could stabilize, giving you incorrect results. I have obtained a basically very low value 120 bass full size accordion on which I will use the bellows for my tuning table and to practice and learn from. The goal is to be able to fix and tune all my accordions myself one day.
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jurkbox73
Guest
Here is kind of the definitive test... can you take the one single lowest reed and play it for a full 2 or more seconds in both directions? If yes, then you have the needed capacity. If not, your results are not going to be accurate. This is the benchmark that I was told by a couple of people that have made their own tuners and are professionals in their domains. 
A lot also depends on the design of the tuner too. I have not built mine yet, but it will not really be a portable unit, meaning it is going to be a small desk design that shall be able to use the full bellows motion. The smaller table-top portable ones might not be able to cut it... but I am now talking without any real life experience, just what others have told me.
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