The Phonogram (1902-08)

Page scan 0005 from The Phonogram

Record Details:

Title:
The Phonogram
Date:
1902-08
Volume:
The Phonogram (II), Issue 28
Leaf #:
0005
Language:
English
Subjects:
honograph,"Phonograph History, Thomas Edison","National Phonograph Company","Sound Recording History
Collection:
Recorded Sound
Coordinator:
Media History Digital Library
Date Added:
July 20, 2022
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Edison Moulded Records H ow Made. (Commenced in r ■ piece is sung or piayea or X recited, as the case may be; making a Record on each of the Phonographs on the rack. Every one of these Records is tried, to judge of the balance of tone. They are inspected with the utmost care and are tested in every way, even to being narrowly scanned under a powerful microscope. After passing this test, the most perfect one is selected to be used in making the Master Mould. The Master Record is then taken over to Mr. Edison’s own private Laboratory and gold plated. It is placed between two gold electrodes. Then the air is exhausted, and a