Wow. This is very impressive! Jim Nichol
On May 10, 2014, at 5:46 PM, Thomas Edison <edisonphonowo...@hotmail.com> wrote: > http://youtu.be/aAvBl-4h4cU > http://youtu.be/XS9l79FtrSU > http://youtu.be/VB_YDdPRJYI > The Above videos take you from Edison's cylinder blank production to how > blanks are made at Borri Audio Laboratories. You will see the manufacture of > metallic soap, the molding of a phonograph blank (in 1900 and present) and > how the blank is trimmed and edged. Only 3 people on the planet who can > share this with you. Lets stop the bickering, by the way, all of us who make > these things are friends, all put a ridiculous amount of time into something > not so appreciated, and sometimes ridiculed as phonographic blasphemy. Add up > the time of each operation. The compound takes 7 hours to make, about an > hour to mold each blank, and 10-15 minutes to trim and edge a blank. They > sit for 30 days and are shaved, shaving a blank from 2.39" down to > 2.196-2.170 takes 20-30 minutes. > _______________________________________________ > Phono-L mailing list > http://phono-l.org _______________________________________________ Phono-L mailing list http://phono-l.org
