Amateur talking pictures and recording (1933)

Page scan 00043 from Amateur talking pictures and recording

Record Details:

Title:
Amateur talking pictures and recording
Date:
1933
Publisher:
London : Sir Isaac Pitman & Sons, Ltd.
Volume:
Amateur talking pictures and recording
Leaf #:
00043
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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BOMB RECORDING EQUIPMENT 31 The driving plate adhering to the turntable by friction revolves turning the gears, and thus the lead screw which, working against the nut of the recording head, gradually draws it inwards, cutting the spiral. In the meantime the electrical impulses acting upon the recording stylus trace out the modulations. The Ekco Radiocorder. Fig. 15 at A shows the general arrangement of the Ekco Radiocorder, which was originally Carrier Gearing. Lead Disc. Blank I Recording Screw. Record, I head. Nut. Driving Plate Stand. Fig. 14. Harlie Recording Attachment developed for recording and reproducing radio programmes. Naturally, however, a microphone attachment can be sapplied which renders it suitable for original sound recording. The system shown at A is complete for recording radio programmes. At the top left corner of the diagram we find the loud speaker and at the top right hand the radio receiver, and at the bottom the lay-out of the gramophone turntable. The recorder and cutting arm are detachable, and into their place can be fitted the reproducing arm. as shown in the small figure. This reproducing arm is BO constructed that it accommodates the recorder for reproduction. The connection box is, as its name indicates, merely a convenient means of joining up leads. The volume control is an addition for replaying records already cut. Tin unnecessary if a radiogram is used, however in the diagram