Posted by: James Carney
Please don't take the broken bass string with you - 12/08/12 08:22 AM
This past week I tuned yet another piano with a missing monochord bass string. I looked at the owner and said "Let me guess - the last tech took the broken string with him, right?"
Owner: "Yup, he said he needed to send it to a bass string maker for duplication, but I never heard from him again."
If the string hadn't been taken I could have spliced it, based on where the break happened (at the coil.) This has happened to me so many times, and every time it does it costs the owner more, since the current tech needs to spend a lot more time measuring and interpolating diameters from neighboring strings. Then we need to order the string, come back, install, and return again to retune. Yet a spliced repair would have been done on that single visit, and the tuning would have been fine as well.
If you have a micrometer and a tape measure with you (and you should if you are a professional piano technician, right?) then simply measure the core wire diameter, the copper wrap diameter, the distance from hitch pin loop to the beginning of the wrap, and the overall length of the wrap. Those four measurements are all you need to order a new bass string if you can't splice. And, if you don't know how to splice, please leave the broken string for the next tech who might.
Whatever you decide to do (or not do) please don't take the string. Even if you have no skills or tools to complete stringing repairs, just coil it up and leave in the bottom of the piano for the next tech...
Owner: "Yup, he said he needed to send it to a bass string maker for duplication, but I never heard from him again."
If the string hadn't been taken I could have spliced it, based on where the break happened (at the coil.) This has happened to me so many times, and every time it does it costs the owner more, since the current tech needs to spend a lot more time measuring and interpolating diameters from neighboring strings. Then we need to order the string, come back, install, and return again to retune. Yet a spliced repair would have been done on that single visit, and the tuning would have been fine as well.
If you have a micrometer and a tape measure with you (and you should if you are a professional piano technician, right?) then simply measure the core wire diameter, the copper wrap diameter, the distance from hitch pin loop to the beginning of the wrap, and the overall length of the wrap. Those four measurements are all you need to order a new bass string if you can't splice. And, if you don't know how to splice, please leave the broken string for the next tech who might.
Whatever you decide to do (or not do) please don't take the string. Even if you have no skills or tools to complete stringing repairs, just coil it up and leave in the bottom of the piano for the next tech...