anywhere

More documents

Recommendations

Info

now available on new SOLID, ONE-PIECE CONSTRUCTION STANDARD N.A.B. HUB DIAMETER 25 % LIGHTER THAN ALUMINUM REEL HAS SMOOTHER FLANGE EDGES WILL NOT BEND RESISTS WARPING AND DISTORTION IP'RACTICALLY INDESTRUCTIBLE HERE's A NEW 2500-foot reel with a number of improved design features that will appeal to many tape recordists. Audiotape can now be supplied on this light-weight Fiberglas reel at no increase in price. For a trial order, get in touch with your nearest Audio distributor. If he doesn't have the new reels in stock, have him contact our New York, Chicago or Hollywood office and we'll see that your requirements are promptly filled. This is another example of how Audiotape gives you extra value at no extra cost. Its performance speaks for itself. Output, frequency response, noise level and distortion are correctly proportioned for the most satis-" factory end result-with no compromise on quality <strong>anywhere</strong> along the line. AUDIO DEVICES, Inc. 444 MADISON AVE., NEW YORK 22, N. Y. Offices in Hollywood - Chicago Export Dept., 13 East 40th St., New York 16, N. Y., Cables "ARlAB"
C. G. McProud, Editor and Publisher INCLUDING Henry A. Schober, Business Manager Harrie K. Richardson, Associate Editor Edgar M. Villchur, Contributing Editor Robin Melton, Production Manager S. L. Cahn, Advertising Director Edgar E. Newrnan,Circulation Director H. N. Reizes, Advertising Manager Re presenta tives H. Thorp Covington, Special Representative 7530 North Sheridan Road, Chicago 26, III. Sanford R. Cowan, Mid-West Representative 67 W. 44th St .. New York 18, N. Y. West Coast James C. Ga lloway J. W. Harbison 816 W. 5th St .. Los Angeles 17, Calif. CONTENTS DECEMBER, 1953 Vol. 37, No. 12 Audio Patents-RichO-1'd H. Do'rf . ... . . ....... . .. . ..... .. .. . . ... . .... . . Book Review .. ...... . . ... . . .............. . . . . .. . .. . . . . ...... . .. . . Letters .. . ...... . .. ........ . ......... . ..... .. . . . . ... . . . ... . .. . . . ... . Audiology- W. R. A:-yres .. . .. .. ............... . . .... . ... . . . . . .. . .... . ~~:~~~~ i:;:~1 : : : :.: : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : Magnetic Ti'ansfer of Stainless Steel Recording Wire-Samuel Storchhei1·n An Automatic D isc Recorder-Cu.rtiss R. Schafer ... .................. . A New Wide-Range Phonograph Cartridge-John F . Wood ........... . Vibration Reduction in Loudspeaker Enclosures- G. B . Houclz ............ . Tired Business Man's Radio Cabinet and Speaker - C. C. Fraser . . . . .. . . . . The Audio Fair Review-Harr·ie 1(. Richardson . ............... ', ...... . Handbook of Sound Reproduction-Chap. 15, Part 1- Edgar M. Villchwr Audio ETC-Edwal'd Tat-nall Canby , ... . .... , ....................... . Record Revue -Edward Tatnall CO-1vby ...... . . .. .. .. ..... ........ . ... . Technicana ............. . ... ........... .. .... . . ......... . .. . .. . . .. ,. New Products ..... .. . . .. ..... . .. .. . . . . ....... . . . . . .... . .. . . . . .. .. .. . New Literature ... . ............................... . .. ..: ..... . ....... . Industry Notes and People ... . . . .... . .. . ...... .. . . .... . . .. . . . . .... . .. . Annual Index . . ............. . . . ... . .. . ... . . . . .. . .. . .. .. . . .. . . .. .. . . . Advertising Index ........... . . . . . . ............... . ............... . . . COVER Most Christmas trees throughout the nation will feature toys and dolls this month -the former for little boys and the latter for little gi rls. However, lives there an audio hobbyist with soul so dead who never to himself has admitted inclinations toward both-"toys" in the form of amplifiers, speakers, tape recorders, and other paraphernalia dear to the heart of those who search for good music reproduction, and "dolls" such as model Marta Roman. This photo, conceived three years ago, awaited realization until the right doll could be located. Studio and equipment were supplied by Air Tone Sound & Recording Company, of Philadelphia. RADIO MAGAZINES, INC., P. O. BOX 629, MINEOLA, N. Y. AUDIO ENGINEERING (title registered U. S. Pat. Olr. ) Is publlsbed monthly at 10 MeGof.rn Avenue. Lancaster, Pa. by Radio Magazines, Inc., Henry A. Schober, President; C. G. McProud, Secretary. Executive and Editorial Omces: 204 )'ront St., Mineola, N. Y. Subscription rates-United States, U. B. PossessloIlJ and Canada, $3.00 for 1 year, $5.00 for 2 y,ara; elsewhere $4.00 per year. Single copies 35 •. Printed In U. S. A. All rights reserTed. Entire content. eop1rigbl -1953 by Radio Magazines, Inc. Entered as Second Class Matter February 9, 1950, at tbe Post Omce, Laneaster. Pa. under the Act ot March 3, 1819. AUDIO ENCINEE.RING • DECEMBER, 1953 2 6 8 12 14 16 19 21 22 24 26 28 34 40 42 46 48 50 71 73 76 , I I I I I I ---------- - ------------ --., Engineering I r-- - ---- - - -----------, WRITERS L I __________ __________ J I I I I I I I I I I I I I r. I I I I I I I I I I I I ENGINEERS, E. E. or PHYSICS GRADUATES, for preparation of technical manuals . . • I I I I I HUGHES RESEARCH AND DEVELOPMENT LABORATORIES' expanding program for production of?'adar, elect?'onic digital computers, guided missiles and othe?' military advanced electronic syste7I'LS and devices requires the I following: I I I I D ELECTRICAL ENGINEERING AND PHYSICS GRADUATES to prepare operating, servicing and overhauling instructions for complex electronic equipment. Those with previous maintenance experience on military equipment preferred. Writers will participate in a three-month program in our technical training school to become familiar with the latest Hughes equipment prior to writing assignments. ~ ENG INEERS EXPERIENCED in the writing and preparation of maintenance manuals for electronic equipment or guided missiles. These specialists will work step-by-step with the people designing, developing and manufacturing the products involved. Experience in the writing of engineering reports is of value. r------------, I HOW TO APPLY I L ____________ J I I I I I Write full details of your qualifications to I r------------------ --, I I I I I 1 HUGHES I I I L _____________ ____ ___ J I I I I I I I I I I I I I Research and Development Laboratories SCIENTIFIC AND ENGINEERING STAFF Culv.,· City, Los Angeles County Calij'o"nia Assurance is required that reloca tion of the applicant will not cau se disruption I of an urgent military project. l : , ~---------- ------ -- ------~ I I I I I I I I '1 I I I I I I , I I , , I I I I I I I I I I I I I I I I I , I I 1
Page 4 and 5: NEXT TIME BE SURE! Foo!ears Peerles
Page 6 and 7: 4 Voyager The first one-case profes
Page 8 and 9: ELECTRONIC DOOR (ONTROl BOX DESIGNI
Page 10 and 11: 8 dl1ySilper ~t d re ce tube for pe
Page 12 and 13: Precision Prints YOUR PRODUCTIONS B
Page 14 and 15: HAVE YOUR OWN COMPLETE HiFi SYSTEM
Page 16 and 17: EDITOR'S REPORT WIDER COVERAGE MORE
Page 18 and 19: p • Watching the serenity of Chri
Page 20 and 21: + 20 20 .004 DIAMETER WIRE .004 DIA
Page 22 and 23: A New Wide-Range Phonograph Cartrid
Page 24 and 25: B Vibration Reduction • In loudsp
Page 26 and 27: Tired Business Man's Radio Cabinet
Page 28 and 29: The 1953 Audio Fair • Review A FT
Page 30 and 31: pre-recorded music-on-tape shown by
Page 32 and 33: It seems to be a pleasant habit of
Page 34 and 35: A Handbook of Sound Reproduction N.
Page 36 and 37: O~~~----------------------- (A) ::i
Page 38 and 39: j No IT WASN'T directly my idea, th
Page 41 and 42: AUDIO ENGINEERING • DECEMBER, 195
Page 43 and 44: the question III features • III a
Page 45 and 46: The sound, whatever the dimens ions
Page 47 and 48: n a~e ________________________ 15 1
Page 49 and 50: EDGE REK·O·KUT LOWBOY Model P-126
Page 51 and 52: DISC RECORD (from page 21) switch t
Page 53 and 54:
ness and temperature instability re
Page 55 and 56:
quency. During this test, of course
Page 57 and 58:
Hum Level The amount of hum at the
Page 59 and 60:
TIRED MAN'S CABINET (f1'OIII page 2
Page 61 and 62:
HEAR the difference, SEE the differ
Page 63 and 64:
Enough said? and yet this is an exc
Page 65 and 66:
M r. M arkell's company is carrying
Page 67 and 68:
In addition to displaying the excel
Page 69 and 70:
PBOFESSIONAI. DmEcroBY Custom- Buil
Page 71 and 72:
!J~ N0ie4 ... The Ampex Corporation
Page 73 and 74:
Audio Engineering-1953 SUBJECT INDE
Page 75 and 76:
AUTHOR INDEX Adams, Charles F. Bina
Page 77 and 78:
'. THESE , ARE THE WHY r~14lIWJ_J 1
show all

anywhere

Create successful ePaper yourself

Delete template?

Save as template?