World Wide Gadget

September 22, 2007

The Making of Phonographs.

Filed under: Technology — zyud @ 4:36 am

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PSM Picture Story by ROBERT F. SMITH and HARRY SAMUELS
THE silent black disk that makes noises when needled is chiefly shellac, lampblack and limestone. In its manufacture, however, pure gold, wax, glass, copper, nickel and sometimes chromium are used by the craftsmen who operate the intricate and delicate machines that squeeze sound into a scratch.

From beginning to end, the commercial manufacture of records is a tremendously exacting process. For example, 50 percent of the wax-coated glass disks on which the music is recorded are rejected before reaching the cutting room. The accompanying pictures tell the story. Link

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