Kinematograph year book (1950)

Record Details:

Title:
Kinematograph year book
Date:
1950
Publisher:
London : Kinematograph Publications Ltd.
Volume:
Kinematograph year book (1950)
Leaf #:
000505
Language:
English
Collection:
Year Book and Global Cinema
Format:
Annuals
Contributor:
Library of Congress, MBRS, Moving Image Section
Sponsor:
Library of Congress, Motion Picture, Broadcasting and Recorded Sound Division
Coordinator:
Media History Digital Library
Description:
Date Added:
April 25, 2024
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ELECTRICAL TESTING INSTRUMENTS, Size: 8" X 71" X *i' Weight: 6| lbs. (including leads) The world's most widely used combination electrical measuring instrument. It provides 50 ranges of readings on a 5-inch handcalibrated scale fitted with an antiparallax mirror, and is guaranteed accurate to B.S. first-grade limits on D.C. and A.C. from 25 c/s to 2 kc/s. The meter will differentiate between A.C. and D.C. supply, the switching being electrically interlocked. The total resistance of the meter is 500,000 ohms. CURRENT; A.C. and D.C. 0 to 10 amps. VOLTAGE : A.C. and D.C. 0 to 1.000 volts. RESISTANCE : Up to 40 megohms. CAPACITY : 0 to 20 mFds. AUDIO-FREQUENCY POWER OUTPUT: 0 to 2 watts. DECIBELS : — 25Db to +16Db. The instrument is self-contained, compact and portable, simple to operate and almost impossible to damage electrically. It is protected by an automatic cut-out against damage through severe overload. Various accessories are available for extending the wide ranges of measurements. Write for fully descriptive pamphlet. Sole Proprietors and Manufacturers: THE AUTOMATIC COIL WINDER & ELECTRICAL EQUIPMENT CO. LTD. Winder House, Douglas Street, London, S.W.I Phone: Victoria 3404-9 A 7/6