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Oct 1935

Volume 6, Issue 10, pp. 293-332

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Electro‐Acoustics and Bells

G. M. Giannini

Rev. Sci. Instrum. 6, 293 (1935); http://dx.doi.org/10.1063/1.1751875 (3 pages)

Online Publication Date: 27 December 2004

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Some Dynamic Methods for Determination of Young's Modulus

John M. Ide

Rev. Sci. Instrum. 6, 296 (1935); http://dx.doi.org/10.1063/1.1751876 (3 pages) | Cited 16 times

Online Publication Date: 27 December 2004

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The Production of High Rotational Speeds

J. W. Beams and E. G. Pickels

Rev. Sci. Instrum. 6, 299 (1935); http://dx.doi.org/10.1063/1.1751877 (10 pages) | Cited 45 times

Online Publication Date: 27 December 2004

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Methods of spinning rotors to very high speeds by means of compressed air are discussed. A detailed description is given of the construction of apparatus to spin rotors both in gases at various pressures and in vacuum. Some uses of the apparatus and its operating characteristics are outlined.

Apparatus for the Measurement of Breakdown Voltage Between Metal Electrodes in Vacuum

H. W. Anderson

Rev. Sci. Instrum. 6, 309 (1935); http://dx.doi.org/10.1063/1.1751878 (6 pages) | Cited 2 times

Online Publication Date: 27 December 2004

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This paper describes apparatus used for the measurement of breakdown voltages between electrodes in vacuum with potentials up to the order of 500 kv. The use of a direct voltage of this magnitude required special shielding to limit electrical stresses in the lead‐in bushing of the vacuum tank. The source of power was an electrostatic belt generator with a corona‐leak voltage control. Voltage was measured with a xylene alcohol high resistance voltmeter. Incidental work with stand‐off insulators in vacuum is described. The results of a series of breakdown measurements are shown with a curve.

Oscillations in Voltage Regulator Circuits

Chas. R. Larkin

Rev. Sci. Instrum. 6, 314 (1935); http://dx.doi.org/10.1063/1.1751879 (2 pages)

Online Publication Date: 27 December 2004

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A Camera for Electron Diffraction

Raymond Morgan and Newbern Smith

Rev. Sci. Instrum. 6, 316 (1935); http://dx.doi.org/10.1063/1.1751880 (4 pages) | Cited 2 times

Online Publication Date: 27 December 2004

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A Sensitive Visual Detector for Alternating‐Current Bridge Measurements

C. K. Strobel

Rev. Sci. Instrum. 6, 319 (1935); http://dx.doi.org/10.1063/1.1751881 (2 pages) | Cited 1 time

Online Publication Date: 27 December 2004

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Integrating Noise Meter

F. B. Haynes

Rev. Sci. Instrum. 6, 321 (1935); http://dx.doi.org/10.1063/1.1751882 (1 page) | Cited 1 time

Online Publication Date: 27 December 2004

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An Inexpensive Direct‐Current Amplifier

R. D. Huntoon

Rev. Sci. Instrum. 6, 322 (1935); http://dx.doi.org/10.1063/1.1751883 (2 pages) | Cited 1 time

Online Publication Date: 27 December 2004

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Multi‐Lamellar Cylindrical Magnetic Shields

T. E. Sterne

Rev. Sci. Instrum. 6, 324 (1935); http://dx.doi.org/10.1063/1.1751884 (3 pages) | Cited 6 times

Online Publication Date: 27 December 2004

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A method is described by which the shielding ratio of a system of coaxial cylinders may be rapidly computed by means of recurrence formulae. For cylinders of infinite length the method is exact and general, being applicable to the case of n coaxial cylinders, of any radial dimensions, in contact or separated by gaps, and composed of the same or of different material. The method should give reasonably correct results when applied to systems of cylinders of finite length but with closed ends. It is illustrated by numerical applications to shields with more than nineteen components.
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A Simple Device for Measuring Speed of Exhaust of Large Capacity Mercury Vapor Pumps

H. C. Howard

Rev. Sci. Instrum. 6, 327 (1935); http://dx.doi.org/10.1063/1.1751885 (1 page) | Cited 2 times

Online Publication Date: 27 December 2004

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A Durable Filter of Potassium Metal

H. M. O'Bryan

Rev. Sci. Instrum. 6, 328 (1935); http://dx.doi.org/10.1063/1.1751886 (1 page) | Cited 2 times

Online Publication Date: 27 December 2004

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On Rubber Connections for Mercury Systems

E. W. Pike

Rev. Sci. Instrum. 6, 328 (1935); http://dx.doi.org/10.1063/1.1751887 (1 page)

Online Publication Date: 27 December 2004

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A Constant Level Device for Liquid Air Baths

B. Bernard Scott and H. C. Howard

Rev. Sci. Instrum. 6, 329 (1935); http://dx.doi.org/10.1063/1.1751888 (1 page) | Cited 1 time

Online Publication Date: 27 December 2004

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A Thin‐Walled Geiger‐Counter

James S. Allen and Luis W. Alvarez

Rev. Sci. Instrum. 6, 329 (1935); http://dx.doi.org/10.1063/1.1751889 (1 page) | Cited 1 time

Online Publication Date: 27 December 2004

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An Illuminator for Printing Laue Photographs

L. W. McKeehan

Rev. Sci. Instrum. 6, 329 (1935); http://dx.doi.org/10.1063/1.1751890 (1 page)

Online Publication Date: 27 December 2004

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PHYSICS NEWS

Rev. Sci. Instrum. 6, 331 (1935); http://dx.doi.org/10.1063/1.1751891 (2 pages)

Online Publication Date: 27 December 2004

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