JHD: AKK DEPARTMENT OF COMMERCE * Letter1-6 BUREAU OF STANDARDS Circular

WASHINGTON LC-400

De c embe r 28 ,1933.

••{Replaoes. Latter Circular 274)

SOURCES -OF RADIO INEORilATrON ’

Contents

1. Periodicals2. Books3. U • S'. Governdejnt radio publications4. Radio lav;s and regulations0. Safety rules.

1, peri odi cals

The following is a partial list .of7 periodicals . largely devotedto radio. They are monthly, except where otherwise stated. Anumber of electrical and, general magazines also publish consider-able radio information.,

, > :

A classified list of the articles of radio engineering inter-est appearing, in: periodicals is published eiach- month In the firstmagazine listed below., the proceedings, of the Institute of RadioEngineers. A short abstract of each article is given. The listis classified, by subject in accordance, with nA classification ofradio subjects, an extension of the Dewey Decimal" System, Bureauof Standards Circular No. 385.

proceedings of th’e Institute’ of Radio Engineers, 33 West 39th,

Street, New Yor ] : ,N .Y . ( Te chn i c a 1 ) .

Bell .System’ Technical Journal. Published by' Boll Telephone Labora-tories, Inc., 463 West Street, New' York", N.Y. (Technical)(Quarterly)

.

Q/ST. published by American Radio Relay League, w . Hartford, Conn.(Technical )

.

Radio Engineerings Bryant Publishing Co.

,

19 E. 47th St., NewYork, N.Y. (Technical).

LC400 — 12/28/35

.

2

Electronics. McGraw-Hill Publishing Co., Inc., 330 W. 42nd Street,New York, N.Y. (Technical).

Radio News. 222 W. 39th St., Now York, N.Y. (Serai-technical).

Radio. 422 Pacific Bldg., San Francisco, Calif. ( Semi-technical

)

Short Wave Craft. Popular Book Corp.,96-98 Park Place, New York,

N.Y. (Semi-technical),

Radiocraft. Techni-Craft Publishing Corporation, 96-98 ParkPlace, Now York, N.Y. ( Semi-technical)

.

General Radio Experimentor. Published by General Radio ' Company,30 State Street, Cambridge, Mass, (Trade, technical).

Radio Retailing. Published by McGraw-Hill 'Publishing Co,,

Inc.,330 W. 42nd St., Not, York, N.Y. (Trade).

Service. Published by John F. Rider Publications, 1440 Broadway,New York

,N.Y. ( Trado) .

Radio Industries. Published by Radio Industries, 185 NorthWabash Avenue, Chicago, 111. (Trade).

Wireless Engineer and ' Experimental Wireless. Published byIliffe & Sons, Ltd., Dorset House, Stamford Street, London,S.E.l, England. (Technical).

Marconi Review. Marconi’s Wireless Telegraph Co., Ltd., PlectraHouse, victoria Embankment

,London, England'. (Technical) ,

Wireless World. Dorset House, Stamford Street, London, S.E.l,England. (Semi-technical) (Weekly).

Modern wireless. Published " by Amalgamated Press, Ltd., FlcctwayHouse, Farringdon Street, London E.C.4, England. ( Semi-te chni cal)

.

~

Elektrischo Nachr i chtcn-Tcchni k . Published by we-ldmannschonBuchhandlung, Berlin S.W.68, 'Germany.

(Technical

; ^in German) .

Zeitschrift ftlr Hochfrequenzt ochnik (also called jahrbuch derDrahtloscn Telegraphic und Tele phonic) . Published by M. Krayn

,

• Gchthiner St ras sc 59, Berlin W10, Germany. (Technical;in German)

.

• .

L’Ondc EloetricUC. Published by E. Chiron', 4Q rue* do Seine,Paris, France. (Technical; in French) ,

v

1,04-00 — 12/23/33. 3*

:v .VfiPX -.;d;2. gookg y. ;V: ei;- : Y , . r:

Herewith are listed a few of the many books published on theyarious .phage s- ofgraglio..y,- The- soupcep of-/ <-rOver#nent- publicationsop radio;; are- -desepibedr^.h -Section ,3 pelow,... =

Radio Principles

Signaling through space . without wires. -.-Sir Oliver Lodge. 12>9^»Electrician Publishing Co., London, England.

Electric waves. H. Hertz, i960 . English translation by D. E.Jones, MacMillan & Co., 60 - 5th Avenue, New York, N.Y.

Principles of wireless telegraphy. G. W. Pierce. 1910. McGraw-Hill Book Go., Inc., 330 Jest 42nd St., New York, N.Y,

Wireless telegraphy, j. Zenneck. 19i-5». English translation byA. E. Seelig. McGraw-Hill Book Co., Inc,, 330 West 42nd St.,

- New, York? N, Y.. . ,

*

, .

The principles of electric wave telegraphy. 4th edition. J.A.Fleping. ,1919# Longpans, Green & Cp.y 55 Fifth Ave. ,.

New York, N.Y. '.'o ; J

Eleptric ill at-i-pngy and elect pic.-:, w-av.ep. ,G

(.W. Pierce. 1.920.

McGraw-Hill Book Op#3 ,Inc

.

yv 330. if-.. - 42nd ' St..;j .- -Hew York, N. Y

,

Modern theory and practice,- inyradio ; communication. - G.-D. Robinson.1920. United States Naval Institute., Annapolis., Md.

-Wireless telegraphy and. telephony,. W.H.Eccles, 1921. Wireless;:Press, Ltd., London, England, Also 324 Broadway, New York, N.Y.

Principles-. underlying radio communication. 2nd edition. 1922 .

Signal Cprps Radio -Communication- Pamphlet, No. 40. Obtainablefrom the Superintendent of Documents, Government PrintingOffice, Ws,shington, D.'Of 41.00.

* + * • - * • *

Radio telephony for amateurs, S, Ballantine. 1922. DavidMcKay Gp. , Philadelphia, pa. •-

. y >

The radio manual. O.E. Dunlap, Jr. 1924. Houghton-Mifflin Co-#,

Cambridge., .Mass., :-

-

p . ,

Practical radio. Moyer and Wostrel. 1926. McGraw-Hill Bookv - 'Co-.;, Inp i -y 330. W ,-t 42nd, St> , ;

New- York , , N . Y, .

.

; ...

• v

Fundamentals of radio. j.L. Thomas. 1927* 6. Van NostrandGo.-,; 250 Fpur.bhyAy e . ..New- York.,

; N.y>-, : j 4.1 » 5Q •

Robison’s manual of radio telegraphy and telephony. 1927* *

United States Naval Institute, Annapolis, Md. 44. 06 .

4 ,LC400 — 12/28/ 33

.

Propagation of wireless waves.-. P. Pedersen. 1927® Vimmelskaftet

,

Copenhagen, Denmark*

Radio’ engineering principles. Lauer & Brown. 2d edition. 1927*McGraw-Hill Book Go., .Inc*, 330 West 42nd. St.., New York, N.Y.$3

.

50 ®

Principles of modern radio receiving. L. G. Hector. 1927* Burton^Publishing Go., Bigelow Bldg. , Buffalo, N.Y.

The outline of radio. J.V.L. Hogan. 1928. Little, Brown & Co.,Boston, .Mass. . , . . ..

Experimental radio. 3d edition. R.R. Ramsey. 1928. Bloomington,... -In.d. 4 ?. 75 « ....

Foundations of radio. R. L. Duncan. 1931. John Wiley & Sons, IncNew York, N. Y. $2-.R>P« : • -M

‘

Wifeless principles and practice. L. S. Palmer. .1928. Longmans,Green & Go., New York, N.Y.

The 'fundamentals of radio , R. R. Ramsey. 192:9*. Bloomington,Ind. 43

.

50 * • • • • -

The radio .manual j- .Go E. sterling.. 1929® : Van N-Octrand • Go .g

’

•

25o

O ^Fourth /Aypnuq,. New Yorl, N.Y. . 46.100..

Radio theory and .operating'. Mary. T-*., Lo.omic. 1929® Loomis Pub-lishing Go.

, /iashington,. D.C-. ,44.. 25'^ :«0--

I. C.:

S. handbook; for radio operators. 1929* International Corres-•. ponderice Schools, Scranton, Pa. .

Elements of radio communication.; J. H. Morecroft. 1929. JohnWiley & Sons, Inc.-, 44*0 Fourth Ave. , New York, N.Y. ' 43.00

Principles Of radio. Keith Henney.;1929. John Wiley & Sons,

Inc., 440 Fourth Ave . , New York'/ N.Y* 43. 50.

Radiotelegraphy and’ telephony* Duncan and Drew. . 1929** John'Wiley & Sons, Inc., 44o Fourth Ave., New York, N.Y. 47*50.

Experimental radio engineering." J* H,Morecrof t . .1931. JohnWiley & Sons, Inc., 440 Fourth Ave., New York, N.Y. 43.50.

The radio ' handbook . J*. A.. • Moyer and.J. F . Wont rel,' 1931 . . McGraw-

Hill Book Go., Inc., 330 % 42nd St., New York, N.Y. 45 . 00.

Radio elementary principles Ev Burns , 1932.. . D. Van No strandGo., New York, N.Y. 42,00.

Lc400 — 12/28/33. 5*

Communication engineering. W. L. Everett. 1932. McGraw-HillBook Co., Inc., 330 West 4-2nd St., New York, N.Y. $5.00.

Radio . engineering. jr F. .-Ei; lermani 1932. .McGraw-Hill Book Co.,

Inc., 320 W.: fPndySt., New York,- N . Y.. $5*30.

Radio engineering Handbook'. E, Kenney. .1932, McGraw-HillBook Co., Inc. ,.330 W, 42nd St . , New. York , N.Y. $5-00*

Elementary principles of wireless telegraphy. R. D. Bangay.Revised by 0. F. Brown. 1933.' Iliffe &, Sons, Ltd., DorsetHouse, Stamford Street, London, S.E.l, England. Price 10s. 6d

Principles of radio communication. J. H. Morecroft. 1933.. John .Wiley & Sons, Inc., 44-0 Fourth Avenue, New York, N.Y.

. .. $7 * 5-3 :';C j- -•-> •• • •

Radio, physics course.. A. A. Gherardi. 1933. Radio Technical,Publishing Go,, SO Fifth Avenue, New York, N.Y.' $3«50.-

. j J .

High Frequencies .

LlS ondes -efectriques . eourtes (short; electric waves) . -R. Mesnv.1927- Les Presses Universitaires do France, 4-0 BoulevardSaint-Mi chel , Paris, France. --..y ;

-;;d.

Short - wqv.es 1 Q,-dR*\ Leutz and ;:R. nB, Gables 1930. C.R. Leutz,.

: Inc., Altoona, .I&ftI $3»Q0lo X

Below 10 meters. 1932. National Co,, Malden, Mass. 50/.

The manual of- short wave. -radio..,: .2 volumes. .1932. National

Go., Malden, Mqss. 5C/ ' each pamphlet.

Hochfrequenztechnlk in der- Luftfahrt (High-frequency techniquein aircraft)-, Hh Xassbender 1932, 'J. .Springer, Unter denLinden, Berlin NW 7? Germany. : 63 -R.M,

The radio amateurs handbooks 1933. -.American Radio Relay LeagueW. Hartford,;; Oo.nn. 41..00,'; ,

•

How to build and operate short wave receivers. 1933. Pub-lished- by • Snort Wpve .Crafty' 96-93. Park Place, New York,

. :-N.Y. 50/.. t-.. - -J : .... •

Short wave wireless communication. A. W. Ladner and C. R.Stpn-er:. 1933, John .Wiley. & Sons ,

' Inc. ,4-40 Fourth Ave. ,

New York, 'N.X. 43,50.. -•-.

-'

;

h"

The radio amateur’s handbook. A. F. Collins and G.C.B.Rowe,7th ed. 1933. Thomas Y. Crowell Co., 393 - 4-th Ave,,New York, N.Y.

LC400 — 12/23/ 33 . 6*

Rad i q ;%c asupsemon t s . 1 »"

• • 4 * 9 • - - i% ’

The wireless telegraphist’s pocketbook of notes, formulae andcalculations. Jh./iU .-Fleming. 1915* Wireless Press, Ltd.,London, England.

, Al'.oo:326 Broadway, New York, N.Y.

Handbook of technical instruction for wireless telegraphists.4th edition. 1913* II,.ifre & Sons, Ltd.., Dorset House,Stamford St., London, S.E.l, England.

Prepared radio measurements, with self-computing charts.Ralph Batcher. 1921. Wireless Press, Inc., 326 Broadway,New York, N.Y.

Radio-frequency measurements. E. 3. Moullin. 2nd ed. 1931.J» B. Lippincott, 22J South 6th St., Philadelphia,- Pa» $12.50

Radio-frequency, electrical measurements- H. A .. - Brown . 1931.McGraw-Hill Book Co., Inc., 330 W. 42nd St., New York, N.Y.

’ |4'.00.

High-frequency measurements. A. Hund. 1933. McGraw-Hill BookCo.,. Inc .,330 W . 42nd St-. > Now ;York , N . Y . ' $5.00.

Vacuum Tubes

The thepmiopic vacuum tube . and its application. . H. J. Van derBijl. 1920. McGraw-Hill Book. Co., Inc., 330 -W, 42nd St.,New York, N.Y. $5.00.

Thermionic tubes in radio telegraphy and telephony. JohnScott-Taggart . .

19.21.- Wireless- Pres'S, Ltd., London-,England. Also 326 Broadway, -New York, N.Y.

Elementary textbook on wireless vacuum tubes. John Soott-Taggart. 1922, . Wireless. Press, Ltd., London, England.Also 326 Broadway, ..New York, -N.Y. -

Theory of thermionic vacuum tube . circuits. L. J. Peters.1927» McGraw-Hill Book Co.,. Inc., 330 W. 42nd St.-,

•'

New York, N.Y.

Electron- tubes and their applications. J. H. Morecroft.1933. John Wiley' & Sons, Inc., 44o Fourth Ave. , New .York,N.Y. $4.50.

Theory of thermionic vacuum tubes, E, L.- Chaffee. . 19-331McGraw-Hill Book Go., Inc«, 330 7. 42nd St.,- New York,.N.Y. $6.00.

LC^OO — 12/2$/ 33 . 7*

Photoelectric Phenomena.7“

. / “J

;. v. r T.

^ yj r) '

Photoelectric cells; theiripropert les , •UBe''ahd applications.

-

Sir I. Pitman and Sons, Ltd., New York, N.Y. 1930. $3.75*

Photocells • and- their applications.-- Zworykin &Wilson. 1932.2nd ed. John Wiley & Sons, Inc., 4-4-0 Fourth Ave., NewYork, ‘ N. Yi i^2

.50 o 1 hi .! —

Photoelectric phenomena. A. L. Hughes and L. A. Pu Bridge.1933. McGraw-Hill Book Go „ , *Inc> , 330 W. 42nd St., New

h York, N.Y. $5.00. " 0- • J! . . .

Television .9 - *-;-

• -

Television. H. H. Sheldon and E. N. Grisewood. 1929* E. VanNostrand Go., New York, N.Y. $2.75*

Television — Its methods and uses. E. IT. Felix. 1932. McGrawKill Book Go., Inch,- 330 W. '"42nd St., New York, N. Y.- :

:

$2 ,;50.'

First principles of television. A. Dinsdale. 1932. JohnWiley & Sons, Inc., 4-4-0 Fourth Ave., New York, N.Y. $3.50*

The outlook for>'televi sion '.- -.0. E.cTpunlap 0 1932. Harper -

Bros., 15 E. 26th St., New York, N.Y. $4-. 00.

Servicing Radio Equipment - - h •• :

'•

Practical radid construction and rep-ai ring — Radio receiving :

tubes - Practical radio - All- three of these •hooks by'Moyer and Wostrel, Published by McGraw-Hill- Book Co., Inc.,330 W. 4-2nd St., New York, N.Y. Price for three,

Practical testing 'systems .•• J. %. Rider. 1930. -Radio Treatise

Co., Inc., 1 4-4-0 Broadway, New York, N.Y. $1.00. •

Radio; servicing- course;; Ah- Ai^'Gherdrdi and B-. if. Freed. 1930.Radio Technical Pub--. C-oV-, $0 Fifth Ave., New York, N.Y. $1 . $0

t 'h.-' ?

Practical radio repairing hints. J. F. Rider. Radio TreatiseCo.,. Inb 14-4-0: --Broadway, New 'York, N.Y.- •

Servicing receivers by means of resistance measurements. J, F.Rider. / 1932. ; uRadio -Treatise-'-'O-O , , Inc.,' 14-4-0- Broadway, ;

New York, N1Y-. i .

: It 1 9'

' - .

'

LC^OG - 12/ 23/ 33

.

S a

Servicing auto-radio receivers. J. F. Rider. • RadiO'-TreatiseCo. , Xnq» > i 4-4-0 Broadway,. New York,, N.Y.

Radio service questions and answers. J. .F . Rider. 2 volumes.Radio Treatise Go. , Ire.., 14-4-0 Broadway, New York,. N.Y.

;

Servicing superheterodynes. J. F. Rider. 1932. Radio TreatiseCo., Inc., l44o Broadway, New York, N.Y.

Perpetual trouble shooter's manual. J. F. Rider. 3 volumes.1933. Radio Treatise Co . Inc., 14-4-0 Broadway, New York, N.Y,vol.l, $7.50; vol . 2, $6.50; vole 3, $7°$0.'

Specialized auto radio manual. Vol.l. J. F. Rider. 1933.Radio Treatise Go., Inc., 14-4-0 Broadway, New York, N.Y. $3,50

«

Miscellaneous .

Wireless ’direct Ion finding and directional reception. 2d ed.-‘ Rri Keefu

1

1927* Iliffe & Sons, 'Ltd., Dorset Rouse, Stam-ford St., London, England.

Radio ° data ‘ charts . R. T. Beatty. 1930. Iliffe & Sons, Ltd,,Borsqt House, Stamford St London, S.-E.l, England,

Quartz resonators and 1 oscillators. P. Vigoureux. 1931.Obtainable from British Library of Information, FrenchBuildings, East 4-5th St., New York, N.Y,

High-frequency alternating currents. .. K. Mcllwain and. J. G.Brainard. ' 1931 « John Wiley & Sons, Inc., .4-4-0 Fourth Ave,.

,

New York, N.Y. - .'$6 . 0.0 .. ,

How to pass U. Sri Government radio license examinations. JohnWiley & Sons, Inc. ,

4-4-0 Fourth Avenue, New York, N.Y.$2 o oo

.<

;'*. •

‘

, f\ /

Radio traffic, manual and operating regulations, Duncan G Drew.John Wiley, & "Soria, Inc.., 4-4-0 Fourth Avenue, New York, N.Y,'$2,007 '

‘’ '

Useful radio tables. J. Ff Rider. Radio Treatise Co*, Inc,

r

14-40 Broadway, New ’York, N.Y.

Radio* operating qu cations'.- and answers.. $’th edition. 1933.Nil sofi

'

Horning.'" McGraW-’Hill Rook Co,, Inc . 330 W.':

4-2ndSt., New York, N.Y. $2 . 50 .

9*1C400 — 12/ 2S/ 33

.

Inductance authority (inductance charts). E. M. Shiepe. 1933.H.- ••BdriiaTd,' \L35\ Liberty St., New York,'- N.Y. .$2.00.

Elecd:roriicS'.;'/.R. G«' Hudson.1- 1933. John Wiley; & Sons, Inc.,

; Fourth -Ave. > New York; N.Y. ‘|2 0 GQ.

1933 Report of the Standard's Committee of the Institute of RadioEngineers f Institute of Radio Engineers, 33 West. 3.9th .St .

,

New York, N.'Y.-

Til-.,' cathode-ray oscillograph in radio research. R. A. Watson-Watt, J. F. Herd, L. H. Bainbridge-Bell . 1933. Publishedby H.M. Stationery Office, London, .England.

3*. U*. S. Government Radio Publications

* A large- numb e-r of papers on radio subjects have been issuedby the Bureau of -Standards-. Some of these have been publishedby the Government Printing Office’ and some in various periodicals.Most of them are of interest primarily to the radio "engineer orscientist rather than to the public. A list of the current pub-lications can "be : secured by addressing ' a request to. Bureau of •

Standards;, ,Wa.shlngton, D.G. , for •-Letter Circular No. 4-0, "Radio,publications of the Bureau’of Standards.. H

:

'

News of the Bureau’ s radio work, and, announcements of newpublications,' -are given in "'Technical .New's Bulletin," a monthlypublication which may be obtained by mail In' the' U. S.

.

for 50cents per year from the; Superintendent of Documents",' GovernmentPrinting Office. The 'notices of new publications state theprices at which each may be purchased from the Superintendentof Documents. -The publications Of the Bureau, of Standards;cover "many subjects, including, besides radio ,

'electricity,

light, sound, heat-,-' chemi stry, * metallurgy, engineering materials

,

standards of weight and measure", and many other scientific andtechnical 1 'siib ;j%'c-1 s .• •'

-. The Bureau .,ol,.:S.t-andards, .also issues Letter---Circulars on

some 1 subjects, in mimeographed form (like this one). Only alimited number of copies of these are available and they arenot sold. The available Letter Circulars are listed, in. LetterCircular No. 4-0

' mentioned above. The 'Bureau can not supply aset of them to anyone. A copy of any one Letter .Circular maybe Secured by ' any person having -specific use for if on applica-...tion to (Bureau -of Standards1 ,'' Washington, D. C.

'

•The Federal Radio Commission issued in. mimeographed form;the-. '"List 1 of^frequeneies July 1 i 1933" , which’ lisfs' the fadib"'transmittihig’-bfat ions in the United States and their assigned,frequencies. Copies of this list are obtainable by - uddreusing

Lc40Q — 12/ 265/ 33

.

a 10 e

the Federal Radio -Commission, 12500. E Street, N.W. ,' Washington,- D. C.

The following lists are available from the InternationalBureau of < Telecommunication, ^Borne, Switzerland: (l) Nomenclatureof coast and ship stations; (2) -Nomenclature -of aeronautic andaircraft stations; (3) Nomenclature of stations carrying specialservices; (4-) Nomenclature Of fixed stations (index to frequencylist); (5) Nomenclature of broadcasting stations; (6) Frequencylist. The prices of these may be obtained by addressing theInternational Bureau,

4, Radio haws and Regulations

The radio regulations and laws of the U, S. are given in apublication entitled "Revised, rules.. and regulations of theFederal Radio Commission, " copies of which are obtainable fromthe Superintendent of Documents, Government Printing Office,Washington, • D, C. , for 4-5 cents. This is a loose-leaf .pamphlet

;

changes in regulations- are added from tine to time.

The law provides that in 'order to operate a radio trans-mitting station, both a station license and an operator licensemust be- secured. The law. provides severe penalties for theoperation of a transmitting. station without proper licenses.

A station used' only; for receiving do.es not require a .

station license. Operators • of stations used only for receivingdo not require operators 5 licenses, but must maintain secrecyin regard to messages heard,, .other' than broadcast messages.

Information and the necessary application blanks for sta-tion and operators' licenses are obtainable from the FederalRadio Commission, Washington, D„C„, or the office of the radiodistrict in which the • ^applicant resides. There are 20 radiodistricts, the offices of wnioh- are located as follows:

Radio District No, 1: Headquarters, Customhouse, Boston, Mass.( Includes.: - Connecticut

, .Maine, : Mas sachusetts , New Hampshire,

Rhode Island and Vermont').. .

; :w. •

Radio District -No. 2: Headquarters', Ui, S. Sub-treasury Bldg.,New York, N.Y. ~

, ; ... . id

Tlncludes: The Countie s\;-b‘f Albany, Bronx, Columbia, Delaware,Dutchess, Greene, Kings, Nhsoau, Orange, New York, Putnam,Queens, Rensselaer-, Richmond, Rockland, Schenectady, Suffolk,Sullivan, Ulster, and Westchester of the State of New York,and- the Court-ties of -Bergen, Essex, Hudson, Hunterdon,' Mercer,Middlesex, Monmouth, i/Lo-rrl's , •• Pa's sai &» Somerset, Sussex, Unionand Warren 'of the -State Of New' -Jersey)

LCta) — l£/2g/33.>

; r . .. 11,

. .Radio; Di-st r ict. No,. 3: Heaaquar t e r s , . ,

Gimbel Bldg. , 35 So. 9tn St. >

['- '

-

'Pi- 1 1add dr;1 a;,' -Ra.B ~ -----y :

W ( Ideludes ':,;A.cIaa;is, _

iferk e .Bucks'.'," Carbon, , Chest or.*,., Cumberland''tJ'aUpuiii,-: Delaware , ••Landasb or .Lebanon, . .-Lehigh i

Monroe,,. . Montgomery,Nortliali|2'ton,7'Perriyt yphiiadelp>hia,

:

Bchuylkill > and., York.'of ..the)

"

State’ or' PennGylvanla.,'.' andbtn'evjpduntieo of Atlantic , Burlington,Camden, ' Cape May," Cumberland, Gloucester, Ocean, '-and Salem ofthe State of New Jersey; and the County of Newcastle, State ofDelaware). . .

...

;; ; r

f

.. , r .

.

Radi o District No . 4:,Headquarterc , Ft. McHenry‘r~~

:Halt:

ihbre , ltd.' Cl deludes: The. State of Maryland , the' District of', Columbia,

.

and: "the Counties.; of,Arlington, ’ Clark, ' Fairfax',.; 'Fauquier, ,

FrederickLoudoun, Page, Prince William, Rappahannock, -Shenandoah, and..

Warren of the State of Virginia, and the Counties" of Kent and..Sussex, of the State of Delaware).. .

.

Radio District No. - p:

Headquarter's, Customhouse, Norfolk, Va.(includes : The. State', of Virginia, . -except the' Counties', of

Arlington', Clark, Fairfax, Fauquier ,' Frederick, .. LoudounA Page,Prince William, Rappahannock', Shenandoah, and,Warren;' and the.State of North Carolina except the Counties "of A'she, Avery,Buncombe, Burke, Caldwell,, Cherokee., . Clay, .Cleveland, .

.Graham,-Hu-y^Odr-'R^nderso iiTBJaek-sohr, MeDowell',' “'Hdnchy-Hla'dis'on', 1

' i t chel 1-,-

Pp^k,....Rutherf.prd.?

Swain, Transylvania, Watauga ahd-Yaney) •-'

f, . n-

> .,c . .. -. . . .

Radio' D i st r ict "No;

. 6; Hb

a

dquart er e,.

52.S Post Office Bldg.,Atlanta", Ga .

~•

~ " ’

(Includes : The;

States -of Alabama, ..Georgia, South Carolina,T enhe she e , and th-e -Wount-i-ee—orf-- -A-sire-r^Avery r

’

fiuneonb-e ,• Burke-,

Caldwell,. Cherokee

, Clay, Cleveland, Graham,.Haywood, Henderson,

Jack son, McDowell;., Macon, '

'Madison ., Mitchell > Polk ,Rutherford

,

Swain,. 'Tranuylvania,- : .Watauga" and Yan'cy of' the State of NorthCarolina.)'. y r~ T.

f;.'..

"

Radio District No,..- 7 : Headquarter'd’, .228 .Post Office Bldg.,'Miami', Florida. "

:,

'

V

'

( Includes : The State of Florida, Puerto Rico, and Virgin Isles)

.

Badio Distri ct No. 8 By Headquarters ,. Customhouse , New Orleans, La.:

;(•'ThcludesY-The-^gfatearof'-Arkanhasr ' Doui s'i ana', Mi s s issippi ,

’

and the City of Texarkana only of ’Texas)

.

Radio District No . 9 « H e.adquafters ,. 2X[9 Prudential Building,_ Galveston,. 'Texas

"''.

' R *” MR-

' C'

’(hR R '

-

(includes'': The' Counties" of Aransas , Brazoria, Brooks, Calhoun,Cameron, . Chambers, ,Fort

;Be.nd, Galveston, .Goliad, Harris, Hidalgo,

-J-aUk-eo-ny- •J-effef soh,R Wifi- Well sRj. (Kbh''eGy CKieTurg ,’ Han't ago-rda ,

• ~

Nueces, Refugio R.San Patricio,,;; Vfcto.ria,, Whafton, and Willacy of,

the State of Texas) .' .T'

IfO^OO — 12^2S/33, ' 12 i

Rad. i o Pi s

I

t 1 at .. No. XQ.:..Ulje^dqiia£-t-gr~s..^ -4-6k~. Fedsral- Bl-d^<?y-Ee,l-l as , Texas“(Includes : The State of Texas, except the Counties of. /Transas,

Brazoria, Brooks,- 'Calhoun,=Cameron,.. Chambers, Fort Bend, Galveston,

Goliad,' Harris ,. Hidalgo ,.Jackson, Jefferson, Jim Wells, Kenedy, ...

Kleberg, Matagorda, ' Nueces Refugio, San Patricio, Victoria,Wharton, and Yancy, and the City of Texarkana, and the States ofNew Mexico and Oklahoma)..

Radio District No. 11s Headquarters, 1105 Rivoa-Strong Bldg.,Los Angeles, Calif.

(includes: The State of Nevada, Arizona, arid the Counties ofImperial, Kern, Kings, Los Angeles, Monterey, Orange,' Riverside,San Bernardino, San Diego, San Luis Obispo, Santa Barbara, Tulare.,and Ventura of the State of California),

Radio District No, 12: Headquarters, Customhouse, San Francisco, Cal

.

“(includes : The State of California, except the Counties ofImperial, Kern, Kings, Los Angeles, Monterey,' Orange,/Riverside,San Bernardino, S.an Diego, San Luis Obispo, Santa Barbara, Tulare,and Tenturaj" and the Stale of Nevada, except 'the County of Clark,Hawaiian Islands, Guam , and American Samoa),

Radio District Not .13) Headquarters? 227 liew. Post Office Bldg*

,

Portland,; Oregon. ' -- .

''

“(Tncludes: The State of Oregon and' the State of Idaho, 'exceptthe Counties, of Benewah, Bonner, Boundary, Clearwater, Idaho,Koo t enai', *

- Latah

-

Lewis)-' -Nez....PerOve, . - and-fShoshon-e)'.-—-----

Radio' District No„ -lb: •Headquarters,' j SOS Federal Office Bldg®',‘Z*"

1 11 1 " «oo™*«***-> «s.-r:Cr» maasmc+nttncraa **-=nmWcaOaiC JpP&SM* S ^r. — * ° 11

-

Seattle, Wash®(Includes:' Alaska; the State • of Washington, the Counties of

Benewah,;Bonner

, Boundary, Clearwater, Idaho, Kootenai, Latah,Lewis, Nez Perce and Shoshone of the State of Idaho, and theCounties of Beaverhead, Broadwater, Cascade, Deerlodge, Flathead,Gallatin, Glacier, Granite, Jefferson, Lake, Lewis and Clark,Lincoln, Madison, Meagher', Mineral, Missoula,’ Ponders, Powell,Ravalli, Sanders, Silver Bow,. Teton, and Toole of the State

* of Montana),

Radio District No, 11: Headquarters., '53S Customhouse, Denver , Golo-,

“TTncludes: The States of GoloTado'j’^^lJtairr'^bHihg,’ 'and Montanaexcept the Counties of Beaverhead, Broadwater, Cascade, Deerlodge,Flathead, Gallatin, Glacier, Granite, Jefferson, Lake, Lewis andClark, -Lincoln, Madison, 'Meagher, Mineral

?

' Missoula, Ponders

,

Powell, Ravalli, Sanders, Silver Bow, Teton, and Toole).

Radio District No.,' l6';~ Headquarters ,4-13 .Federal Bldg. , St , Paul ,

Minn,rincludes:. The States of 'Nopth D sico t- a , South Dakota, Minne-

sota, and the Counties" of Alger, 'Baraga, Chippewa, Delta, Dickin-son, Gogebic, Houghton, Iron Keweenaw, Luce, Mackinac, Marquette,Menominee, Ontonagon, and Schoolcraft of the State of Michigan,

LC&OO — 12/ 225/ 33 ,

and the State of Wisconsin,. except the .Counties of Columbia,Crawford, Dane, Dodge, Grant,-. Green, I-dwa, Jefferson, Kenosha,Lafayette, failwauke.e, Ozaukee , Racine, Richland, Rock, Sauk,Walwo;rth

? ;

RTacjhin'gtori, ' arid' Waukesha) - unooiq :

Radio District Nod 17: ileadqudrters , 231 Federal Bldg;., :Kansas •

City," Ho

o

• :' ' i

;

: - C - :J •’

(Includes : The States of Nebraska, Kansas;,- Missouri, and Iowa,except the Counties of Allamakee, Buchanan, Cedar, Clayton,Clinton, Delaware, Des Moines, Dubuque, Fayette, Henry, Jacksdn,Johnson, Jones, Lee, Linn, Louisa, Muscatine, Scott, Washington,and Winneshiek).

Radio District Non IS: Headquarters, 2022 ‘Engineering Bldg.

,

Chicago , 111 .

-

'

~( Includes : The States of Indiana, Illinois, and the Counties ofAllamakee, Buchanan, Cedar, Clayton, Clinton, Delaware, Des Moines,Dubuque, Fayette, Henry, Jackson, Johnson, Jbnes, Lee, Linn,Louisa, Muscatine, Scott, ’Washington, and Winneshiek of the Stateof Iowa;, and .the Counties of Columbia, -’'Crawford, Dane, Dodge,Grant, Green, Iowa,. Jefferson, Kenosha, Lafayette, Milwaukee,Ozaukee, Racine, Richland,: Rock, . Sauk, Walworth, ..Washington andWaukesha of the State of Wisconsin) . : ...

Radio District No. IRt Headquarters', 2909 David Stott Bldg.,Detroit., Wtichigdn.

~ - : '.c

( Includ'd s i The State Of Michigan, .except the Counties of Alger,Baraga, Chippewa, Delta, Dickinson, Gogebic, Houghton,- Iron,Keweenaw, Luce, Mackinac, Marquette, Minominee, Ontonagon andSchoolcraft; the States of Ohio, Kentucky, - and West Virginia).

Radio District' No. 20? Headquarters, gift-

; Federal Bldgyj Buffalo , N. Y 0

(Includes: The State of New York, except- the Count ie'e ' ofAlbany, Bronx, Columbia, Delaware, Dutchess, Greene, Kings,Nassau, New York, Orange, Putnam, Queens, Rensselaer, Richmond,Rockland, Schenectady, Suffolk, Sullivan, Ulster, and West-Chester; the State of Pennsylvania, except Adams, Berks, Bucks,Carbon, Chester, Cumberland, Dauphin, Delaware, Lancaster, •

Lebanon, yplonroe, Montgomery, Northampton, Perry-, Philadelphia,'Schuylkill, and York).

Examinat ions for radio operators’ licenses are held inthe 20 offices just listed and in addition:

Washington, D. C,Schenectady, N.Y.Winston-Salem, N.C.Nashville, Tenn.

San Antonio, Tex.Oklahoma City, Okla.Des Moines, Iowa.St. Louis, Mo.

Pittsburgh, Pa.Cleveland, Ohio.Cincinnati, Ohio.Columbus, Ohio.

LC400 - 12/22/33. 14 ,

o:i / - /i /Ir .g,. .gafety Rul e b "

-

All ordinary precautions* required for the safe operationof any electrical equipment, should be observed in every radiostation;, for. uxanple,... all .high-voltage, wiring .should, be -caro---fully insulated and kept as far as possible from other wiringand so placed as to minimize- the possibility that persons naycome in contact with it, and suitable danger tags should bedisplayed*

Insurance companies and city governments make certainrequirements regarding electrical installations in buildings*.The usual requirements are. surAinarlzed In .£b.hmal.l ..b.o..o.k., the.National Electrical Code, which may be secured for ten cents'

.from.: the National Board of Fire Underwriters, £5 John Street,New York, N.Y. Article 37 of this Sode gives the requirementsfor radio : equipment *

"•

Requirements for safe radio construction are p;iven in-sureau of Standards Handbook No. 9> "Safety Rules for RadioInstallations, " which may be. obtained from the Superintendentof Documents, Government Printing Office, Washington, D.C,-,at ten cents per copy. This handbook gives, on pages 7 to 1 ^>.

rul es_fpr_.-. erect lorn...of.-, antennas..'

.Somehe.kplahation. of these..

.

rules and of the reasons for them is given in Part 5 of B.;S.

Handbook No. "Discussion of the National Electrical SafetyCode, . the price of which is il.OO, -•

• Safety standards for radio- transmitting equipment aregiven in the Report of the Committee on Standardization,.obtainable from the Institute -of Radio Engineers, 33 West39th Street, New York, N.Y.

Department o-f Commerce,

'

'

;

i-

Washington, D.C. 1 •