I just posted a video clip of a modified coil maker that I use to make a bass string hitch pin loop. If you want the whole video to see how I use it to make the coil and hitch pin loop, send me a note.
Repairing, Regulating, and Evaluating Pianos
Modified Coil Maker
November 11, 2016
By Mark Cerisano, RPT, B.Sc.(Mech.Eng.)
Ho trovato il tuo articolo e video molto interessante..continua cosi..THANKS!!
Grazzi