Amateur talking pictures and recording (1933)

Record Details:

Title:
Amateur talking pictures and recording
Date:
1933
Publisher:
London : Sir Isaac Pitman & Sons, Ltd.
Volume:
Amateur talking pictures and recording
Leaf #:
00073
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
May 02, 2024
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RECORDING NOTES 61 being equal, the longer the pick-up arm the better it is for recording or reproduction. Recording. As mentioned previously recording on the aluminium type of disc usually takes place either by means of a steel needle or a diamond cutter. In the case of the latter nothing further is to be said, but the needle sometimes sold for the former method can be considerably improved Fig. 29a. 6-~T> O E Input + (Igranic Electric Co., Ltd.) Circuit of P225 Amplifikr by a little experiment. The writer has obtained beneficial results by carefully stoning the point on an oil stone of the type used by carpenters and engineers. Considerable care should be taken, but a little experiment will amply repay the trouble. The point of the needle should be examined by means of a magnifying glass. Sometimes the needles sold for recording purposes when examined in this manner exhibit only too clearly their imperfections. Amplification. Several times we have mentioned the different types of amplifier that can be used for home recording. Naturally, if one has a good mains-operated radio set one does not care to purchase a special amplifier. Those