electrical measurements and their industrial applications ... radio...,;ol('iil liar expansion,...

$: Electrical Measurements And Their Industrial Applications ... Radio...,;ol('IIL lIar expansion, II,ill ll('", t:Q1np:my in the (.,11 of 191 9 fou nd itse lf in Ihul l\\ilighL zone$
'l1r?~r2~"L'"

~ PEBIMENTEB ~ VOLUME No.10 MARCH ,1944

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IN TH1S 1SSUE

7 ' KlI 1'1 1".IC \TION~ 8

NEW CHAIRS - SAME PEOPLE • ON JUNE 14, 1915, I.hen ~ll'I\ ;llc Eas l l' :I,tI ITI'(:i,,' d frOIll I he S -,-rt-Iary of tile CoIllIllOII\I,'a llli of I\ l a !!f!;ul'hu :>4: II i!

a charier to op, 'nlle the Gene ral I{IHlio

('.ompall) lie had not (Iuite reacht,.1 his th il,ticth hirlll(ltI). Durin g the tla)8 of \\orl<1 War I. \Ir. Eas lha ll! \\ as juinc tl

in the General nat/io \ cnturc, first, by Ilt-nr} S. Shan , ami lata I,y Errol IL Lot·kc. 5110rll) aftt'r returui llg frOIll FralH:c in 1919 H arold B. niciullond also joincd liti s group

Dena ted frolll ii i! ,;ol('IIL lIar expansion, II,ill ll(' ", t:Q1np:m y in the (.,11 o f 191 9 fou nd it se lf in Ihul l \\ilighL zone \\h. ' f C cilll(' r life or deal h \~ullidcusily follo\\, Il s cldcs loffil'cr, \Ir. Shaw, "as nOl )c t tllirt) . Ii,c, and the )Ollll gcs t of the group, ·'lr. Uil·ItIIlOIIlI , \.as s tillulIll l' r thirt y. Pl' rllllpS it i .. lite rl'(:ollcc lioll o f Iltc s trugg les o f Iltf),;.e carl) fla ys ,dl(' n ) oULh did not kllOI. defeat I.lml have made this group of fOU l" so UlllIlli.

Ftln(' lional ,,~ani zalin" chari (,f the ",ana:: .. ~nt of the C."II('1"1I 1 Badin eo"'I}Ilny.

H.l.WlllA IID SliPT. Of Pl..A Hl

.11 ......

BASIC ORG""'ZA~ CoWlT GENERAL RADIO COMPANY

'-

H.8. RICHt>10NO, CHM.

IET LABS, Inc in the GenRad tradition

534 Main Street, Westbury, NY 11590 www.ietlabs.com

TEL: (516) 334-5959 • (800) 899-8438 • FAX: (516) 334-5988

GENERH RADIO EXPERIME NTER 2

MELVILLE EASTHAM RNiring Pn'~j,lell l

mow; in their decision thaL the al,ti ve opera tion of the Company shoul+.! br- in tbe hands of young men,

h has further been the aim of the four principals of the Company to have it kllOWII as a b'l'O UP workin g toge ther ratbe r than the image of any individual. For this reason titles ha \'c not always been fully descriptive. ,d,ile the acti ve mall agenwnt of the Company s temllled from a group kllO\\n 118 t he l\ l anllI.'CillCrlt C.ollllllil.lce . ma,lc up of t hc ofliccrs and the chiefs of the opt.'rllting divisions. The om" ers also fe lt that it was desir· aLle to avoid making an y sud de ll change in the o' er·all manabrc ment. The age 1,,'I'o tlping of these oflicers ill such that the trlllls{er of n-spollsibi lity to the younger Illcn can best be necom· plished if thcS<J olTiCf"r s simultaneously r(·linquish thcir fum:tional positions.

Thus, at the IIIlTlual mce tin g of the coq lOra tion he lrl on February fifth , alld al II Diret;tors' meeting held on the same day, a !lumOcr of ehnngcs in personncl,

a lltl the rcvlsion of du ties pertine ll t to the 6Cveral positions, \\ erc Illafle t,o ~ bri l,lg ahOl It. the abo\,e-illentioncd .Iesired resul ts .

J\ lcssrs. Eas t!,am, Locke, Uichmolld , and Shaw wi ll continuc as Dir~c t ors and havc 11t.'e1i joined hy Frank L. Tut;ker , formerly Comptrollcr, who "as a lso clcctt;d Treasurer and Secrctary of the Company. :Mr. Eas tl,alll , fo rmerl y Presi(iClll , ami Mr. Shaw. formerl y Chairman of the BOlin!, will hold no officcrshi p, although Mr. Eas th alll will lClllllOrarily con tinue in charge of rescarch and developmcilt wit h Litle of Cluef Eligineer. -Mr. l{idlJllond was appoi nted Chairru an of the BOlm/ of Direc tors and Chairman of the ~ l anage Illcn t Commit.tce. ~h. Locke. {orlllerly Vice · President , "US elec ted President.

Nell' appointmen t,s, ill lldtlition to Mr. 'rucker as Sene tll l'Y and T n:'asurer, :lfO ;\ rt hur E. Thiessen. formcrly Com. ~ mercia! Engineering Manager , as Vice· Presidt' nt in C harge of Sales, and Charles C. Curey, formcrly Superintendent , as Vice .Prcsi dcllt in Charge of ,Manufacturi ng.

i\ simplified ",ke!f'h showing the lie ... · orgalli~ation is givcn 011 page one. The Boal'r! of Direl'lors I HI\\ (',msis ts of [\Ir, HiclulI!llld as Cha irlll:ll i. \lessrs. Ea;;; thlllll, Lo('k{'. 5113\\\ mill Tucker. These !lame fIl eil "ith the a(l dit ioli of J\ !essrs. Cure)'. Thiesscn. and ClllIrles T, Burkc, F:lIgillt't"ri llg I\ l a ll ager, "OlllprISC the ~l anage Ule lll Comm illt.'e. !\I r. Burke is also Chlli rflHIIl of the Scllctlu !ing ComlIIit tce which is n:spons.iblo for co· onli na ting thc adivi tics of ti,e t hree departmc nts thlll rcport to tllc- ~ I an age

llIent Commi ttec-. i\ l r. C. E. Jl ills, J r" \.110 itas bec-n

ass<:wiated witit t he Co mpllllY s ince 1922, al I(I has bec li Commercial ~ I nna·

ger sillec 1929, wi ll conti nue ill tha t



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3

posi tion. hut ill At l.lil;OIl has LlCc n npl)Ointcd !\ !lSislu n t Sc"re LIlr) and ·\ 8si81· Ant 'l'reaSlIrt'r of 11 11' CompulI).

!le ur} S. Slut". Ihe reti ring Chu irmun of the Board, joined the CollljJun} ill

191 7 and IIUlI d"I-If'.1 Tn;usure r the follo"i ng ~ear. Ill' @.e r lc.1 in this cApacil ) until 1926 "hen he 11('('81111.' ChairlIIan of the BoIlNI of Dirt(,tQrs. "hieh office he held eonl intlll,,!'I} IIlIlil 1<'(,llfll Ilr} 5. 1911.

\'1r. Sha w is a gra.llIllic of Ihlr vard LlliH'rsity in the Class uf 1906 ali(I hcfo re joining Ihe Ge ne ral Hudi n Compa ny was l· mplo)l·t J iu the o lliCt' of IIII.' tr(! 118-urer of SC H'rul Nc" I-: lI l)hlllll lu: til" mills. 11,' has sNlcd 118 n tlil'ct~ tor of a Uos ton trus t compan y lIud U8 n IrllSle(' of u Bo81011 savings bank. IIlltl ;8 cm · rently llirel'tor of ot her bliSillcss cor· l)Oraliolls. lie has heell interestctl in amateur radio sinee 1910, an d it "as t his interest "hieh "as instrument al ill hrinbri ll g him to the General Hatlio Company during the first \Vorld War. lIis scie nLific mcmUerships include:

Fetlo", .. IUl! tilutc o( l(aJio F."bi"e<~ Fello",. ,\rnericau ,\ co.lemy t)( Arl.lI arod

Sciences Fello .... ' \""'rk,," Auodat;ol1 (or the A. I.

\'ano,:emcnt or Sdence Fello .... ,\ CQuni"ul Socit l y "r A m .. riu \l eml>er. Americurl III&t ilule t) r Eleclriu l

E .. gineer'll ,\Iember. Amcrica .. \l elron ,logicul ~icty \l erllber. Anll:rican Gl'OI,hyBica l Union.

MI·\ville Eastha m Will! one of the fou nders of Lhe Ciapp-Eal! LllIHn Colliplin y in 1906. Thill cOlllpan ). whose nallle is familiar to 1111 o ld -timers in the radio imluS lr), first llIanuflie lured X- Ha) apparatus, bu ls tllrled the manu_ fac ture of "" ircless" equipmenl in 1908.

Mr. East ham left Ihe Clapp-ElIs lham I"""'- Compa ny in 1915 to Uecollle preside nt

of the Ge neral Hadio Company, and he held this Onil'e until 19 \ I. lie has re o

MARCH,I 9H

ce nll )' " Ix' nl nearl} I, .. , .H'ars on lea\ e of a bSC! lI l't! to Ihe Hadialion L800rlllvr) al \lassachu5e lts Ins lilute of Tcrh· Ilology. "orf..ing on II I(' .1,'si:;11 of lI ,ili I :lr} equiplllc nl.

lIis prillcipal inlerNiI hll '; ul"8),:' bef>n in the design of in!>tnulle llts anl l l'Oln l"'·'· nen l;!., a nd he is resl'on.'li ble for III III! } of Ce nera l Radio's snlull part s al< "dl as some complex instrll, nCli lS.

One of hi" important in tt'rcIOt,. olllF-itle the Genenl l n adio Colllpll n} has I:t..~·n Ihe 11I.'I l i lllt c of n lldio En gi nt 'er;:;, in \Ihich orgunizll iio ll he lien ee! II1 l1 n) years as 11 tlire{'tor. IIml frollli 1927 to 1910 as treasur('f. li e ,,'as IIllur, ll ·d the In ;;l illltc ]\ 11,,1111 of lIunM in I <.l37.

li e Iiolds, amongolllO'r!', 111I' fo llo"ing llIe lll bcr"l,i ps:

Fell .... , Iuslil nl<, or Budi" Ell!;;,,,·,· .... Fell", •. \m,!ri"lIu \$;'''';;lli<)11 r'lr Ihc A./·

'IIncem .. ,,' l)r ~:;'- ;ellc" MemIH·r. \rn .. riclltl 1"~I; lule "r ' ·: I."· I.ri,·a'

Engir"~fi!. "couslic .. 1 Soci .. l) or \", .. rica. AmeriClin l ·h>~i" .. 1 Soeit: ly. \nwrican \I eloorolugicnl Suckty.



TEL: (516) 334-5959 • (800) 899-8438 • FAX: (516) 334-5988

GENERAL RAOIO EXPERIMENTER 4

E HHOL II. LOCKE Pn':Sid~",

Il urol,1 B. Hi,·I'lIlorHI. ti,l.' in"olnin l,! Cha inmlll of the /30;lr,1 ~)f Diredors alill Chairman of Ihe ~hnagelllt'nt COlli'lIiltt'(',joilll.',1 the Gc ncru l H;I(lioorgu ni :r.ation in 1919, be('o ming: S,"'rctllry in 192 1, Assis tant Tn'asun' I' in 19:N, and Tre:.surer si 'H'e I926.

II,> is a grad ua le of till ' Class of 1911. \laSS<H'h •• !\(, tl '; lnSlit ll l" of Tel'h nolog,). and for the p:lslr' II'H'11 ) ,'ur;< has Leen a memhtr of 11r(' Corpora tion of thal In Stilli lioli . Si1ll1' last ) ,'a l' he has also hee n a rncn,j)(' r I)f the COl'poralioll of Nortlwu!\lcn. L·ni\f>r~i t ) . • \1r, Bid" rnOll tl IHIS scnetl as Dir('r ' tor allll Presi· ,lent of till' I{adio \ l unu fuI' lurcrs' AsStwiation, and as Viec-Chairman of t he Hnanl nf the Seientifi,' AppMatlis ,\1akers of America. II I.' has I)('('n u tlirel'lor of II Call1hrid ge Irllsl ,'ompuny lind is nOlI a Cnr po rlilor of Ihe lI ome Savi ngs Btlnk nf Bos loll alltl ;.Iso a llirel'tol' of Ihe Ullilctl .\1,. lila 1 Fin: lusurar!!'c Co mpany.

.Defore joining the Genera l Hadio

Compan y . . Mr. Hic hrno nrl had sen e,1 \\itb t he S lOne & Webs ler \/ a na ge lllr' nl "" Associlltioll . t1o(' Ge ne ral Vehi,'le Co mpany. aud as II me mbe l' of t he e ir;c tri"l1l e llb'; Hca ing stall" of t ill' !l l aSSlldlr . ~' tt s

Ins ti t ute of Technology, which POSilio l1 \,as in tcrrupted when he \\as eal1/' ,1 to "l'ti,"c (Iut y as .. I'CSI'rVC oflinT in till' Coast Artillery Co.-ps in 1917. Il l' is a Fello .. of the j\. Ill:rican Insti t ute of Elct'triclIl Eligilll'l'rs anJ of the Imui . tllte o f Uadi" Engirlt'crs.

Errol I I. Locke, o ur ne\\ j~residen l. joincli the Company in IYIS, bCl'omin g Vil;c-Prcsillen l in 1920,3 1111 hol,lillg th :a o ffice u ill il his election to the presiJc.H'Y on Fe bru ary fift h. J\ l r , Lor::ke has beCIl partinr lllrly in lcrcsicli in produe Livn and Ir as llc\'oled himself very lal'gcl) to tlHlt plrase o( the Compan y's aClivities.

Mr. l.ol'kc is II graduale or Il ar Yanl College in the CltlSS o f 19 13. Befor(' joi ning tire Ge llcra l Hadio Company Ire was in lhe i.l\ e6 Imc rr l banking busi rrelPi,

IIA ItOLI) B. IH C lI lI lOND (JmirlUuII tJj JJooru



TEL: (516) 334-5959 • (800) 899-8438 • FAX: (516) 334-5988

5

lIis nub,i.le IIClnl.leS !ta \,;' large l), ,..... ('ellten.' ;1 nroullll his nnli, !! 10\'11 of

l..t·.\ in gloll. \III .;!o'\I' hu!'t: II S. III ,(-re he lias »c r"cll 011 lurious 10 \1111-,)lIll1lillc('5

and si lU '" 1939 has hcc n OIIC of il ;; ;;.: I('{·,men . Il l' i" a Director of Ih(" Lc.\ ing lo n Trus t Co rnpau ), uTrus \ce of 11 \1.! I,,'x ingIon SII' ings Bunk . the I'n-sirlcn l o f l ilt; 1A''\.i ng loll 11 0 1l 1f' (or \ g(' (1 Peuple. ;\11.1 Tr.'us urer o f t il(' IA'\ ingtun lIi ;:; lori. 'al

Sot:ic I).

Frauk L. Tlld,N. Treasurer. rc, 'ci" cd hi" B.S. Itegret' in Eln:lric(j l Eu gilwcring: from 11 11,: Lni\ cr~ i l ) of Tc~ ns ill 1927. IUIlI his \1. B. \ , dl'l:~r("c frrllll the II lI rl llI"Ol C rll,lualc Sdloul o f lIu .. incII" Admi ni ll ·

Irali"" i ll ' 9:~O. lt t' \\MI'lI1plo}i·,1 iI) thl" S' -Olll Hu d IA: IIM: O l' p arll1lt' 1l1 (.r the I.IIIf Oil CoIll I'"I11 ) ill 1923 29. and II) ·hlllllr I), Little. IIW " frll m J 9:\0 III 193 1.

11 (' \'11 1111' II) t llf' ( ; .. lIcral H:I.! i., COlli ·

pari ) as Ii wt iS lician in 1931 alil l "US a l'Point('d Cmnplro ll .. r in 19:\7. "hNe hi!' arti\ iti .... 11U\(, illdwll'd 111 311 ) pitust's

1\11'1' 111111 E, TJIIES~ E !\ ... I jn,. I'f .... j.!.,,,, Jor ,";',1.",

of COIII[lllll ) lin;llH'iul pro,'t'dllr,', in.

dUlling aceoll lllill l:" Sinlisl;, ';<. (")618. uml g:O\CrnIllCI11 rcgulation;!,

.\Ir, Tud,er is a IIIl' ml:N'r of th~

National \ s","O(' ia tioll of Co~ t \ e",lunt· unl s, li e has been tI(";\I' in lilt, li anllnl Business St' hool \llIlIIni ASSOI.' iulion :111(1 the Greal er Bo.. ton Collllllllllil ) FIII .. I.

Arthur E. Thi~'!'sc n . Vict'· I'resi.I. 'nt in Charge of Sulcs, grudu :llcd fro m John~ lI opl-.ins Lni\ crll it } ill 1926 "il h Ihe degree of 1I:U'hf' lor of Eligilicc ring, tHle r gradunlion he "cc8 l11e a \Icmbcr of Ihe Tc.--itnieal Siaff of Ihe Ik' il TcI(' · phonc Lahoratories. 1l':tvi llg 111I'rt: ill 192H to join the (' ng illccrin g s t:lff o f tilt.'

t..:" lwral HlUlio Co mpan y. For the n .. xl sc \(:ra l )eurs he "US e ngaged in bol l. ,Ic \ c lo pnlcllt c ngineeri ng ant! !Hlles :Ic t i\ i · tics. heeoming Comnwrcial Enginecrillg 1\ lan ag;'r in 1937.

Arlidcs by \I r. Thics,o;;c ll !tU\C up· pc:tred freq ue ntl } ill Ihe Experimenler and in o lhe r lecilllieul puLlicatiolis. li e



TEL: (516) 334-5959 • (800) 899-8438 • FAX: (516) 334-5988

GE NERAl RADIO EXPERIMENTER 6

CIlARLF:S C. CA RF:Y I iI.~'- I'n·.·i,J('", jor Aimwju('furiu"

is a Senior MClIlbe r of the In;;(itu te of n adio E ngincers, a Member of t he American Ins tihlle of Electrical Ell gi. neers, and of Ihe American Associalion for the Alh-anccment of Scie ll(;e.

Lie is a Director of the Family Welfare Society of Ca mbridge and a lso a ,ii r('c lor of t llO loca l manu fac turing COII!;CrIlS.

Charles C. Carey. Vi,,'C.Presid(·nl in Charge of l\lanufaclllrill g, joined the Gc nera l Hadio organiza tion as a winder in 1927 ami beca me foreman of the wi ndi ng depar tmcnt ill 1928. I-Ie became assistant to Mr. Locke, who ",'as the n ,·tee .preside nt ill ch arge of prolluc t;on. in 1931. in I\ hich ca paci ty he s lIper· \·ised t he prod uc tion of s llCcial items and go\'cmmCllt contrac ts . \Vhile in this I>osi tion he also reorgaru:-.ed the Company's prod uc tion control system. In 1935 he was apl>ointcd production superinte ndent, holding that pos t until recen Lly e lected Vice·Preside nt.

Prior to· ' his association \,ilh ti le General nallio Company, l\ l r. Care} r-"\

was employed by the New EllglarlllTele. phone and Tclegra pll Company frOIll 1922 to 1925, and by lhe Acme Appara . tus Compan y from 1925 to 1927.

Charles E. lI ills, Jr. , Assistan t Secre· tary and Assis tant Treasurer, was graduated from Northeastern Uni ver . "ity in 192 L with t he degree of Bachelor of Electrical En ginccri ng. J Ie came to General Hadio in 1922, after a short pe riod in the employ of the Boston Edison Company. After spending 011e year in the prod uc tion departmen t and fi ve years in the sales ilepar tment, he beca me Commercial Manager in 1929, which position he still holds.

Mr. BilJs is a member of the National Office Maua~'Crs' Associa tion, too Export MalJagers' Club of Nf.\\\ York, ami the New England K" I>orL ~ Club. LIe is 311 associate of t he i"ns titute of nadio Engineers.

CIIA HLES E. mu.s, JR . A,lisla"t Secretar,. and A uutallt 1'reosurer



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r

1

C HARLF...s T. BURKE 'ffll,opml Gommillef'

Charles T. Ourke, Engineering \lan -

MARCH, 19H

8b'CT, receiH:d I,i s S.1l. and 5.)1. degrees from the ~Iassachusetls Institute of Technology in 1924. Afler graduation, he joined the engineering s taff of (iI('

General Iladio Compuu)'. Sillce thul time his activities IUlve illclmlcd engineering, publicil ), 8ules, lind expor l. lie was editor of til(' e.,.,JCrimcntcr frolll

1927 to 1929, and '''18 uppoinl.ed Engincering j\lanager in 1933. lie has been a member of the \l allagc lIlclI l Corn . mittee since 1939, and \13S appointed Chairman of Ihe Sched uling Colllmitlce in ]943.

Mr. Burke is a rello" of Ihe lus titute of Radio Engineers and a , rember of the J\lllcrican IlIslitul,c of 1~lcdrical

Engineers. li e has been acli,c in municipal affairs in hiii horne to"n of Waterto .... n, ~lassachllsellii. havi ng served as a Town " ce ting \lemlJcr. and is at "rese nt Chairm an of the Trustees of lhe Free Public Librar) o( lhat to" 11.

DOUBLE DUTY

S"I'l'lcm~nting the efforUi of our 66 eml,IoYef:!I in th" armet! fOt"CN, 31 oth"r G,,"eral Radio ""'1'(0) ~ oo"trih"te much of their ti"'" ah"r .. orking hOUr!! tlireclly to mililarr acti.-ities. Of thi~ group, 23 Irc Il1cm~", of Ihe U. S. Coa~ 1 Guard Au"iliary, eix olhe", have Joined the \laeel!· ch" ileu l S tllte Guard, and t..-o ,,·om~n ell1l'loycc& lire memhel"ll of Ihe Women'. Dcfen.8e Corp •.



TEL: (516) 334-5959 • (800) 899-8438 • FAX: (516) 334-5988

GENERAL Ro\OIO EXPERIMENTER 8

NEW PUBLICATIONS .THE SERIES Of ARTICLES 11\ II. II. Scu ll . (' II [i[lell " The Noi'>!' I':'imcr:' \\hieh rUIl &\.·rill l" in the Ex· /X'rilllf'fllt'r 1m, I ~t';l r , ill 110\\ :1\lIi llll,le ill bool.. le l fO('III.

Tilt· i\oi...e PriIlH~ r ;14 [Il(' \ lie of noi« IIl1tl \ ibra l ion IHt'lI"ure ll1(·nl. Sta l1tl:lrd". 11It' l hud;=;, aTHI in!' l rU II U' Il [S IIrc dis.·uS>o!·1 1

in lid ail. I f )01 1 make flni ,.,.,. atHI \iltratioll

1II(' a"Uf('lllcnlJ;. ur if )UlI \\oulll like 10 It'llrll mure IIbolit the IIct't' l'tcd I Jlethod~

lOf 11l1'II"UI'CIllCIlI. ~ 011 \\ ill find I hi" book· Ici \ alunblc. A ('oP) \\ ill I,e 8('11 1 fn'c 0 11

n·llItI'~l.

-.- .r.

• THE INOUCTANCE CHART t!ri~i ll a ll ) publishl'll ill lite '\ ugu81. J,)IO. i""llI.' of Ihe 1::"'/H!rillll'lIIl '" 111Il1 I'Ccc ll tl) :nu il :tllie in II Ii \: 22·indl .,i,...e for \\a ll

llIuunlill~. Ita" iJl T Ii reprillle.1 ill 11 I· pllge, 8M x II ·illdl folder. llulIl'het l for II s land:wl 3·rin g binder. Thi.~ dHirl inilielllc., Iht ' nmlllM.' r of tu rn~ fCljllin'tl

folr II gi\cn inlltwlllIH'e ill lerlll;; of Ihl' I" ng l h lIIHI II ilHue"'r (,f I he \\ imling: fur m .

All :lIl:\iliar) dWl't rI"lc l'luill t,;S the \Iil'("

"j,.~. 10 Ioe u:;CII. I f} "u clin usc Ihi ,. 11U1l11 Y ail l 10 the ('oil .le~i~ ll('r , \\ri le for a e' lp).

Til t: Ce,tf' rul Uu(/in EX /'lm'1f t; ' Tt;u is mfliletlll' illlollt c /llIrge em;. /1 mott III 10 eug;'u'f·rs. lwif.,tt I iSlS, tedlnicill".s, und ot/l ers ill t erest cd j" COUlllllltli·

cntion-frt:(llIe/H'Y tllf.'U,""relllf' ttt 1111(/ colttrol,Jroblmll s. IF/ten se'H/itt g rt'

(1"'· ... Is jor .~ II/' ... f·rifJlit}ns (HId "ddrt'ss-dwlIge ltol.ice.OJ, please SII/)Jl/y lit"

follow;,tg illjor"wlimt: " ( Illte. COnt/HUlY Hume, ('O"'PllllY udclr!!s.OJ, ' Y IU' of bll.~itu'."." CfJIIlIH"ly is f,tlgug cd i'l , fIII11 tille or posilion oj illdi r;iduul.

GENERAL 10 STATE STREET

RADIO COMPANY CAMBRIDGE 39. MASSACHUSETTS

BRANCH EHGINEERING OFFICES 90 WEST STREET, NEW YORK CITY i

920 SOUTH MICHIGAN AVENUE, CHICAGO 5, ILLINOIS 1000 NORTH SEWARD STREET. LOS ANGELES 31, CALIFORNIA



TEL: (516) 334-5959 • (800) 899-8438 • FAX: (516) 334-5988

electrical measurements and their industrial applications ... radio...,;ol('iil liar expansion,...

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