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~EMLE~ - World Radio History...The renovution of the club house is ubout completed. Members of the Civic Club ilre finishing the inRi~e, which consists of painting the walls dnd refinishing

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Page 1: ~EMLE~ - World Radio History...The renovution of the club house is ubout completed. Members of the Civic Club ilre finishing the inRi~e, which consists of painting the walls dnd refinishing

~EMLE~

SEP (ftvJ(;f.tZ ,QSo

Page 2: ~EMLE~ - World Radio History...The renovution of the club house is ubout completed. Members of the Civic Club ilre finishing the inRi~e, which consists of painting the walls dnd refinishing

2

POWER SUPPLy ••••••••••••.•••••.•.••• 3 ATMOSPHERICA •••.•......•••.••••••••• 4 MONTGOMERY WARD CATALOG PAGE •.•••••• 5 OUR PEOPLE ••••••••••••••••••• ;, •••• 6-8 SWAP SHOP ••••.••••.••.•.•.•••••.• 8,16 DIAGRAMS OF INTEREST .•....•.••.••••• 9 1930 EDITORIAL ••••.••.••••••••..••• 10 LETTERS •....•..•.....•.•••••.•••••• 12 Ol'e •......•......................• 13 CARTOON CLIPPINGS ••.••••.•.•.•.•... 14 I.Q. TRIMMER ••••••.....••.••.•••••• 15

The Call Letter is a monthly publication or the Northwest Vintage Radio Society, a non-profit organization, incorporated in the state of Oregon. Meetings of the So­ciety are held on the second Saturday of each month, normally, at the Buena Vista clubhouse located at 16th and Jackson Streets, Oregon City, Oregon. Meetings convene at 10 o'clock A.M.

•• •• •• •• •• •• Editor-in-chie! ..•..••• Bill De Vey

16969 s.w. Tracy Ave. Lake Grove, Or., 97034 Ph: 635-6746

Contributing Writer .••••• Tom James Power Supply •••••••• Bobbie Kibler Our People ••••••••.•.• Hugh Rankin Advertising Mgr ••••••....• Bob Hay

•• •• •• •• •• •• Feature articles are contributed by mem-bers under various by-lines. Please send all contributions to the editor.

•• •• •• •• •• •• Call Letter Address: P.O. Box 02379,

Portland, Oregon, 97202

Page 3: ~EMLE~ - World Radio History...The renovution of the club house is ubout completed. Members of the Civic Club ilre finishing the inRi~e, which consists of painting the walls dnd refinishing

The renovution of the club house is ubout completed. Members of the Civic Club ilre finishing the inRi~e, which consists of painting the walls dnd refinishing the floor. New plumbJng and restroom facilities as well us a new hot water heater have been installed. iU so, insulation has been applied where neces­sary. Wood will still be the source of heat, but the old heater has been replaced with a brand new circulator. The old pluce is now sllorting a new paint job on the outside LInd a new wood shingle roof. Also, a very attractive porch has replaced the old one in front,and a ramp for wheelchairs has been installed in back. We'll hardly know the old place, will we?

Corn is on now, and the following recipe is an unusual way to use up some of those roasting ears.

Cor!l_~'Oys tel's"

6 eurs select curn 3 egg yolks, well beaten ~4 c. flour ~ tsp. baking powder

Salt and pepper to taste 3 egg whites, stiffly beaten

Cut corn off cob abuut two-thirdf'i the depth uf the kernel. Scrape cob to remove the re­maining corn, but not any of the cob. Adrl eU:f!; yolks; . blend. Si ft together flour, bakin,~ puwder, salt and pepper. Stir into corn-egg mixture; blend. Gently fold in egg whites. Drop by spoonfuls on hot, well-greased griddle. Fry until nicely browned und purfed up like an oyster. Mukes four serVings.

Page 4: ~EMLE~ - World Radio History...The renovution of the club house is ubout completed. Members of the Civic Club ilre finishing the inRi~e, which consists of painting the walls dnd refinishing

4

-~ Vene~---~hooe~ !

Jhd model --1.ix;t~ 7?a.di-eil-e 9 /,pund in. a cobblVt' --1 /,Jwp,

WM a "{'ind" .one o/i-en cUteam--1 01-, 9n rp-Mt of. the ViJl:ta9:e C/Wp.

Jhe chM--lu WM a bd Vtoded, Some pcvr:L1. --1howed "--1toJtafje gAa~:'

Bu:t the ci.ACLUi. WM p/teil-~ -1koo'kwn flnd /teal4 ~owed --1ome clarw.

/I owev Vt, the cab in.et WM --1p1in.tVt:;; ~ JAe p1:;wood beJjond beLiel JAat waLmd veneVt WM paJtted

J/tOm the boxllJood wLdVUleath. 9 clJAAed f.o/t da~, the p/toblem,

iJeYe1opwf} a fI--1and~ --1rp-.ird_", J/t~w£ to /tMto/te that mon--ltVt

Jo a --1emi..-~i...c mint. * JAen m~ /Aiend calLed OVvt;

/lad a 'lath" wdAou:t the --1et---, /lClJIe 9 90t a ~u han4

Jo/t a --1~ Ra.di..elle ? We11---- 9 couLl hw e killed Aim;

9t ~u1d come M no .1.1Utp./tue, WA~ 9 --1oid thd danrf cathecbtaL

Will the arfft/tavated pli..M !

(* a Joe JompkiM o/ti!Ji-nal)

** ** ** ** {lJarnma !joo--1e # 10

{lJaJt~, {lJa/tlf rp-de conhr..aA~, /low doM ~oWt CLMwn twLe?

Will manff. --1rp-€.ak--1, and eVtie ~ie!M, 911 have to aLL d --1oon !

4/80

Page 5: ~EMLE~ - World Radio History...The renovution of the club house is ubout completed. Members of the Civic Club ilre finishing the inRi~e, which consists of painting the walls dnd refinishing

Our Special Variometer Q •• !l::: ~~~:~em;:rr:, Ie ~::I~'~~d by I:,'" f~~~~ il~r~~~~II~I:~:u~hl~~ gfAde var!orn,.tl'fll AA hl'log the b('R\ dl'!llJ(nnd and r.nn~lrllrted varl'Jmrt('r In Ill! prlre CIU.III1. In eVflr)' rCf'p<'Ct It III tl\1" ~'Iul\l of rnany 1'!"lIhlli: Itt much hlgh('r Vrkcf!. Mul<l",1 or g .. nulnf' LakrJlta Into A litront;t'. he&Htltul!\. I\nlllil('\} lInlt. Wlnd'lll:~ I\f(' (If IMlte

r:~~ti:~\~g;:rl~b ~r~;)(~r:~t'~~II~lr~~rll~':~~'I~":t~I;t~~~ ~:n!l~f:'!f~:; ~~~t,!i y~"WI ~'::;;,I:;'I ;',' n~:;~;i~"~~ \~f:lr:J '1~ u; t t ~~('~! ~~: t ~~~''';~t~: ~rli~r~lta~~~:;~~:~l~ :::~ l~~~)~~~~~tfY:!~{1T~~I:ftrt~:~~:h!I~~~ '1I1t~ '" Indln!\"" lUll h .. ld 011 forml' II') Ihllot th!"re I" nn diane .. "r (hl"n ('(lmin>!' 1\'<>111> 8hll.ft III !4 Inch in dl&rnrtf'r A rUIlJiI'l1 lor

~IN('~ ~~~~~ .~~~1~ .1~~I~~~I.Il.I.'. . . .. . . . . $3.98 roat.,Il", ll'" elltr.

·~i~ "~~.,, I .

~~ '!J""

Molded Composition Varlometer

Rtr\tor and rntor (orm!! of thl9 Vatlo-­ml'ter Mil molrl,.d \'OInll(lR\Uon. \\ III uot w8rp "r flhrln):; 8ml holdfl ~Inllln,,, flrml}' III phu'f'r. Wl"dlng~ ate IHOIH'r-

:~~~"lfiIDl a::;r ~ ~:~IIP~I.It!hll·l I:r; VA.rIOmI'WT hl\.~ IIlmwn l'x(,l'lIl'nt TO­lults I., actual u"p Anrilll r€;(,<lIllOl"n,llld &l'I A 'Iult.tlty Ilr()(fllct; at .. low lltleEi

~~l~'~;f;;~.~:~~. ~~ .p.ll.u.el.~SI2~69 ~o.taa., tlf eItr.

Wood Form Varlorneter

An et1pedatly "f'1l bulU Vatl(). meter with !'tlLtor aDd rotor rorm" of kiln drlro WIMt. Will no' shrInk or "'\Tp. UMl'"rII of thl, \"Ilrlomeler .. ll1.lm It I" on,. or th@! ~t working 11lI!truUlf'ntl! lilli-tiP.. WlndlnJlII at!" prop<'rlr dp"lgJH.>d for emdeTJt rf''''\IIt!< frum Hili to Itno [Dot(lfll. flhll.lt,~. Inch. "or eIU)(~r table or pADel mountIng.

03 W J!.~a'I1~; '10"" ei:i;.!2.19

Gives Good Result. We ,,~If'rled thl'" Var\(llll!'tl!'t tor the

Pf'nl(ll"l who "I~hps" ~l\tI"rlU'tnrv 10lltnl· mrnlll.L ""CfylnW I)rlre. Thl", I" nnt" ""r, but a tlra("t .... al vsrl'lmeter th ... t '!<ill r~!\lo tha hrolldrut ('uncertl!. WIlI!'Il u ... cd III palrR with the vlt.ri(}('QIl1'll'"r f!llOWn II.~ right, thll. ,,&rl"lIIrtI'"T milo''''''' a

~~t; "~tlkIU~ir~hrl~!rl'nl~~~'i~~fn': n~I~~ Ut!I~~h~ble or panel loount!nl· 99¢ 63 W 83g!.t-.ti,;; ~'.:it;.··'·

Our De Luxe Variocoupler

TIll" VarlO<'oupJer 18 l!aVI'rctll-lly rt!C<)nl",t'llded for UJle In atfllllA clr·

:~~ :~~n~:r~t :~dl~,t,r~$h~~ll~~~ "tth II- 23 ·vlato \-'arlahl" {'"ondrll",er

~;hf8r~~EI~~~ftiri!~J~:~~I~~~~~ ~et" p~t O~;n[::,II~"'J~S:~~at~~~,,~'!~!~ in th ... hnokup ~lijll!:l·~tOO wllh a de­'ector and t"f"'"t~'" II.llIpllnr-r, IItlt.Uon!J from l}I/O to )500 mill'S aw,w w('Ie

¥::l~co::"~:rrl~~~~~~t r~~~(~~~e l~o~l'It~~~~da~e rAj,o ri:'~;~:fn~~l ':~d

~g~: XJ~g~~. ~~.'~n8~~:I~t~~:II~~I.~.~~.~f~~I~~~t~~r~,~.~~~~mS31!~45 Po.tallfl, 11, .ztr.

All-Meter Cou~ler MAny peopl,. ~M>lm a "I't th"t will te­

e~lvf' IInmf'thhlJl 111'~ldl''' the 1I81J81 hroad­CtLIIllIlg Ilta~ll'nlL To thc)I"~ whf) BTl' In­\crcM\.('\I In Ull1! "<'Ill l"-" .dflJt thfO All· \ f>,tNN (""\l(ller. It IR IlItrnrifld '''fllf'!' tn A. Hlng!!' ("\r!'lIlt f/':tE(,"JI"rlltlrfo hQ<lkulJ and

:NI ~~I;:~~~!!\II~,tiu~M~~I~\::::;;;~,,:(l~h~I~~t;~"d commNd",1 IItlltl,)ml I'll /'100 tn {.IS2 ,""te(lI, lj'ovctnrucuL br'lIlrl(·,,~tIJIR" ~llltlon!l on 71)0 to 1'100 tr."tOTI!, and will III~v 1'lUlbh' rOIl

n'l'tC'rll 'rJrnarr, toutlof

COIITnwtlnll W ~",jtr"h 1"'ll1t~. he U.l<f'(j "'lth a vArtllble c')I1(I"n~ .. r In III'rl('M .·Ith ant('nna 1"'('6 l'jlf(t'!I 28 9.nl1 29 f'lr con. d.'nMNS. Flh"n, Y4 loch dl'~mf'tl'f 83 W 63~o.

R.kclite Coupler

th:t w'1W"'~I~!'~:e~ll~~~{\;I'~~1~~lr~ .. your radio lI'!t. WOUIl'" wllh 111Ik OO\'crecl wire on lifellulne h",k,'llte

~~~;!lt'Dh~I"n~"\):~:r ~:f,~,~~~l~;: ~~;.r;tI!8I tRJlP~:~[lI~il~' n~~h~W.I'J~. loch dlalll(llilt. Wavnlrnil!l rafllIl', 100 to MO meton

83W6313.... .$2.B rou_lIe. If ".tr.

.$5.2.5

------------------

EffiCient, But Inexpensive Varlocoupler'/ Df'flla:nfld to matcb f)ur No. ftJ W 6303

IIhoWD At the len f'UI", tbe neM lor _

~r~~~~"th:~~o~~~r~:(~I~:I:r~('~A~'hl~~~ :~t~,~~I~:~~f!~:~~~~~~r:t:~,,('~~t:~:L~~ 10 .. three <:Ircutt tunpt· Wound wllh 111111: ('overNi wire on "nber eomt)Ound f()rm. ArranJfro for 'able Of [lSf)('1

~~~I~h~i'I\:~:"pt!.!n~r :~~Lr .. t:1l ~~rr; 63}'~';§8;: .............. 99~

rost ••• ,84 eu",

Varlocoupler Parta IOr"lnr!("1! all nf'r"f'II"Iary rllrt" l'X·

~~fo~~~il':~ R~~~~d~r~lf~ ~~~g~ on tM W,l'OO. totor, primary 18 "'''IUI\I on II.n 'n,,"I80Unjt tllbf" an<1<'afl bl'" Ulr>tlf'd Ilt an)' I)Oll1t. n r nil. IIhaft"', h"ll.r\n~!t an... i'ol1np('lln( 1l!{'ff'W! nJlI~heQ rrM), W /I.!lf!emlJle,

~3~r613~51~1~ ......... SI.04 63 w 6~°:i~·~~R~~~~r only, POlltalte, 3" e.tr •....... , .. 33¢

'o'!t':I1~,3.~ ~n~:~~~r. ~~~ .~~lA·,.

All merchandise shown on this page shipped from Portland, Ore. 23

Page 6: ~EMLE~ - World Radio History...The renovution of the club house is ubout completed. Members of the Civic Club ilre finishing the inRi~e, which consists of painting the walls dnd refinishing

Some people will do anything to avoid a picnic. Our good friend and regular contributor to this column, Hugh Rankin decided he would have his gal bladder removed in stead of coming to our August picnic. He spent 10 days in the hospital after a gal bladder attack last month in stead of joining us at the Trolley Car Park. Really Hugh, the picnic wasn't all that bad. In fact most of us had quite a good time.

Kidding aside - Hugh has had a rough time of it recently. I understand that he is up and around now at least enough to mow the lawn. That sounds very "up and around" to me. Hurry and get well Hugh. ~e all wish you a speedy recovery.

Last months picnic at the Trolley Car Park was enjoyable. There were seven young men, seven young ladies and two old cars in attendance. fhe two old cars belonged to Jim Mason and Harley Perkins respectively. Dick Howard and family got off the trolley car with picnic basket in hand just about the time that some of us began to head for home. I haven't had a chance to find out what happened to Dick. I'm not sure whether his late arrival was planned or the buggy broke down on the way or what!

The only radio on hand was a small black plastic job no bigger than your fist. It apparently belonged to Evelyn and Joey Tompkins. It was made by some outfit by the name of SANYO. That sounds Japanese to me. I would say that bringing one of those gizmos to a vintage radio club meeting borders on heresy. Shame on you, Joey.

The Power Supply provided beverages, rolls and butter as promised. Lou Stober capped off the festivities with a great. ice-cold watermelon. A short business meeting consisted primarily of the reading of the minutes of the July meeting.

Page 7: ~EMLE~ - World Radio History...The renovution of the club house is ubout completed. Members of the Civic Club ilre finishing the inRi~e, which consists of painting the walls dnd refinishing

We are now about one month away from the fall swap meet. That means it's time to be dig­ging through the piles of radio junque and junk that you have accumulated from all those great garage sales throughout the summer and weed out the junk. Remember, you bring the junque to the swap meet and keep the junk in your basement -or is it the other way around.

'" . .. .. . .. . .. . ,. . . '" . . .. . .. The present editor of the Call Letter is

hereby making known to all that the editorship will be open to another individual beginning with the January 1981 issue. Anyone interested in serving the club in this capacity for the coming year should contact Bill De Vey A.S.A.P. for some O.J.T.

.. .. • • • • • .. .. • .. * • .. • • • •

The special items of interest for show and tell at the September meeting will be components such as crystal detectors, web inductors, caps, variometers, speakers, telegraph sounders, lightning arrestors, etc.

• • • • • • * • • .. • • • • .. • • •

The following tidbits have been 'contributed by Art Redman. Thanks Art.

--~--.; Attention Ra.diola. 24

Before plugging in or pulling out the c\tcrnal hat­ter\' cahle on the Ratii()la 24, it is ,'en' illljll)rt;lnt that the filament s\ritr11 bc pushed ill, This pre­caution should he taken due to the fact that under certain conditions the Radiotrons mav he hlirncd out if the filament circuit is not hrokcn, i hie to all oillis­sioll this warning ",as not included ill the illStrllction book, ,,\11 dealers a rc requested to pass tltis in f()r­Illation on to Radiob "~4 ()\\"IllTS illllJ\cdiateh",

7

Page 8: ~EMLE~ - World Radio History...The renovution of the club house is ubout completed. Members of the Civic Club ilre finishing the inRi~e, which consists of painting the walls dnd refinishing

Wireless Quote of the Month

"The Audion has proven very sensitive for use in wireless telephony, yet it is doubtful if it will ever come into wide use, owing to the difficulty in manufacture and short life. Usually quite 8. number of Audions have to be tested out before one sensitive enough for general use is found."

Victor H. Laughter author of Operatorts Wireless telegraph and Telephone Handbook, Fredrick J. Drake and Co. Chicago, 1909, Page 80.

WANTED: Chassis that fits a 1931 Brunswick model 11, 12, 16, 18 or 33. (Model D chassis). Ed Buhi te, 4041 N.E. ~istaria. Ph: 284-7061

•••••••••••••• ** ••

FOR SALE: steinite radio, circa 1930. Gilfillan Model 6-C. Westinghouse WR342. About 47 ea. octal and pre­octal tubes. Contact Mrs. Parsons, 7029 S.E. 83rd, Ph: 771-8044 . .. . . . . . . . . . . . . . . . .

WANTED:

8

Documentation for National SW-3, copies or original. Plug in coils for same set. Your price. Bill De Vey, Ph: 635-6746.

Page 9: ~EMLE~ - World Radio History...The renovution of the club house is ubout completed. Members of the Civic Club ilre finishing the inRi~e, which consists of painting the walls dnd refinishing

SEPARATE REGENERATION TUBE HOOK-UP

I

I I

I

"---'7---'--_' ,

• "]JEHE i..; a CilCtlit 1 hny(' tlil'! "itlt H'l'"

f't\'()r;}LI(· H'~1I!t:-." ."a,' El11< ~t n, .:\Jilkr (;f X~W Y(lrk Cit;.. One "ccti!Ju of tilt ](;ll(,T j, l1-.rrl ;1' a rq .. :tiH'latiPIJ ('(llltllll fllllj tlh' tlthtT "trlillll ;t~ ;1 J!rirI-le;lh defrrtnr; fhi~ cirelli! h;l~ l,,·l)yt·d 1., 'iP \lry ."n1n f ltil. ht .'-ay:.:. The lfL"(;T )1;1" a 1~i(ldt' u,-(,d ae: :ttl ill1pl,d:t!l('e-('oupltd ~\.F. stJI-':t'; tht: I't'lltfl(lt' j.;; 11'-1..'11 ;-t~ :l. I t",j,t;111l't··,"upkd .. \.F. ont­Jlut "'tag-t', Tht, \",dll" Ilf (' ~lf1d R ;uc a~ iol1ow~:

r)- -100 111mf. \';11. Cond. TUllil1~ ('3-- 35 Jll111f. Y;Ir. ('ond. Ibnd-Sprefld ("1---100 Jl11l1f. --'Iica (,~---.O()5 Illfllf. ~liC:1 (,tl---.Ofl5 nHllf. ~Jj(';\

Ci-O.l mf. Pa]ltT .. FlO ,"ph CR-- 0.1 mf. }';lJl('1" ·WO ndt CQ .()()J Tllf. :\lic;1 .. HID \'rdt I,l·_l .. ~- h 1'1 "Ilc; Coil"

R.F.C. = R.F. C},n,,, R 1--3 1l1fi!_ l~f·"j:'t(lr H?--SO.OOO (·hlll P(,kll f jnl1lo·tt'f

R3-0 . ..'':- meg. Ht "i"tor R-t·-O.S Jlln-! H, ·,j ... l01

R.5-·- )0.000 ul1ll1 H( ... j<..tol R6---0.S llH'I!, H( "j"lnr

c-13 '/2 v

B' ,*-,1"; H':) .....

eIl -500 to ;(1) ht'm ..... \_F. r:l1'lhe (nr Sec. (,f A.F. Tram .. ,) -

S\\"-S.I'.::;,T, S" itch

WHAT'S WRONG WITH THIS DIAGRAM?

r-+~M!WIr-r-~ )(

'----_x + 300Y.

Be honest with yourself and study the di~9ram above for "t leas! 3 minutes before

9

Page 10: ~EMLE~ - World Radio History...The renovution of the club house is ubout completed. Members of the Civic Club ilre finishing the inRi~e, which consists of painting the walls dnd refinishing

'JV!,diotorial @011t17teI1! "By the Editor

nADIO has failed to loosen th~ stranglehold of its

.n.. old-man-of-the-sea. the Federal Radio Commis­sion. Congress has given it a new lease on life and President Hoover has recommended that it be re-

F edet-al Radio Commission

organized with the abolition of

the zone method of selecting the commissioners. Thus the industry will be burdened with

this nOB-essential for at least another yeef. When the terms of the present commissioners expire on Feb­ruary 23, it matters little whether they are reappointed or whether new men are put in their places.

For it is not the personnel which is criticized so much as it is the system which continues a body after it has outlived its usefulness. Since its allocation of wavelengths in 1928 it has perfonned no duty which could not have been done as well or better by the Radio Division of the Department of Commerce.

This Division. so far as broadcasting is concerned, is functioning merely as a traffic policeman without much authority OT responsibility. Yet within its poorly paid personnel are many men who are better qualified by education. training and experience to do the Com~ mission'!, work than are their superiors, the Com-missioners.

And now it is proposed that the Commission be made "se1f~supportjng" to the tune of $810,000 a year by the imposition of fees for applications and permits for the erection and operation of stations. But what about the broadcasters, who!;e businesses are most certainly not seJf~supporting even without the pay­ment of the proposed fees? It's all wrong, sister, it's all wrong.

T HE grid of a vacuum tube is the traffic cop who stands in the one-way street between the filament

and plate. Electrons are the automobilists who, on a hot summer day are Aeeing from the heat of the fila­

Electron Traffic

ment to the attractiveness of the plate. More and more of them leave 3S the filament gets hotter and hotter. More and more of them arrive as the plate

gets more and more attractive, or positive. Their number determines the amount of plate current. This i. regulated by the traffic-cop grid_ It stops them, it slows them, it speeds them by its degree of negative­n{'S5; it even detours some of them by becoming posi­tive. If this crude word picture aids in an under­standing of the funnamental action of a vacuum tube, its purpose is accomplished.

10

T HE National Better Busine8~ Bureau justly crit· icizes the radio industry for its circus style of

advertising. Their impartial survey of radio adver­tising discloses an almost incredible parade of such

Exaggeration in Radio A dvedising

supedatives as "greatest," "fin· est," "dearest," and "most." The Bureau points out that such un­!'upported claims do not create confidence in the mind of the

buyer and that an industry which seeks full value for its advertising investment must give due consideration to facts and rational statements. It is suggested that radio manufacturers, in particular, express their wiU~ ingness to voluntarily abandon "pure bunk" in an en­deavor to correct this unhealthy condition. Those advertisers who do not exaggerate their claims for perfonnance are conspicuous in contrast to those who do.

T HE ancient Romans had a two-faced god called Janus, one of whose faces looked back and the

other looked forward. The month of January was named for him, Thus at the beginning of a new

The Year in Retrospect

year it has become customary to look backward over the old and forward over the new, taking stock as it Wtre. The backward

view of radio accomplishment during 1929 is wide and varied. The forward view, though dimmer, is equally promising, especially if some of the lessons learned in hindsight are applied in foresight.

Pra'Ctically speaking, it was a screen-grid year for the r~f circuit, these tubes partly replacing the three­element heater tube, and both of them almost forcing the filament type of 3-c tube out of use. The first result of this displacement was the production of practically hurnless reception. Furthermore screen~ grid tubes made some sets so sensitive that the sounds of interfering noises became as loud or louder than the sOWld of the dc!'ired distant programs. For the average location greater sensitivity is not wanted.

Great progress was also made in improving the se­lectivity of receivers, especiaUy in the use of bandpass tuning. Greater selectivity than is now attainable would seriously cut the sidebands and thus spoil the fidelity of reproduction.

For the first time, plate detection has been more generally used than the grid-bias and resistance method. The trend toward unnecessary loudness of reproduction was ~topped by the widespread u~e of

Page 11: ~EMLE~ - World Radio History...The renovution of the club house is ubout completed. Members of the Civic Club ilre finishing the inRi~e, which consists of painting the walls dnd refinishing

intermediate power tubes. The lower plate voltages thus requirf'd enabled a notable reduction in the cost of the power supply equipment.

Elrctro~dynamic speakers were the favorite. with maJ;netic speakers a poor second, and condenser type hardly recogni2ed. Relatively few Sets were equipped for automatic tuning, remole control, or automatic regulation of volume. these selling points still being

largely left for use next year. Great strides were made in the practical minimization of interference to radio reception.

Comp<uatively little publicity has been given to any

technical developments during the year. The less said about radiovisioll the better, for a whHe. Steady prog­ress was made in the application of radio to aerial navigation. Much was learned about the vagaries of wave propagation, especially in the short wavelengths. The screen~gTid tube was used as a detector and audio amplifier to som~ extent and considerable experiment­ing was done with five~e1ement tubes.

Late in the year Loftin and White announced suc­cessful amplification without distortion by directly coupling the plate of a detector-amplifier tube to the grid of a power tube. The Bel) Telephone Laboratories developed a practical crystal-controlled oscillator unit with temperature control that will enable a broadcast station to maintain a frequency within SO cycles of that which it has been assigned.

From the sales standpoint, 1929 showed the great­est business in the industry's history. over 3~,; million sets being sold, as compared with 2Y2 million sold in 1928, and l~.~ miUion in 1927. But as more than 4~{ million sets were made in the factories, there was an over~production of nearly one million set!;. The year was profitable for most radio concerns although earn­ings were far below those anticipated. Due possibly to the development of the talking moving picture. there were unprecedented sales of power amplifying equipment.

T HE future of the radio industry is not quite SO

dubious as was painted at the time of the big slump in the stock market. While there wi11 be storms to be weathered during 1930. and the ~horn lamb must

The Year ;11 Prospect

beware, manufacturers have given assurance that production will be limi ted so as not to again exceed a reasonable demand and that they

will play frur with the dealer. There will be consider­able carry~over of distress merchandise which must either he absorbed in a cut-price mflrket or sold in foreign fields where Jast year's American product is still new.

The probable curtailment of production during the early part of 1930 may have somewhat of an adverse effect on the makers of parts and accessories. But their decreased sales do not necessarily mean smaller profits. either for them or the manufat:turers who use most of their output. Even with a production sch~Jule of one-foul"th less than that of last year, there sho .. 1d

be a reduction in selling costs which shouJd allow at least the same net profit. Much of the high cost of seH. ing has been due to the tremendous effort to sell ex· cess production.

The greate~t market during 1930 should come from the replacement of old battery operated sets w:th new a·c receivers. While this was counted upon for 1929,

owners were not satisfied tha.t the new screen~grid

sets gave sufficiently improved results to justify the change. New models whose circuits more efficiently utili.ze the greater amplification of screen·grid tubes will be necessary to junk the old ones. Since, once a radio owner almost invariably means always a radio owner, each ('010 set which is no longer serviceable cans for a new one to replace it.

Then again there is the two~set famiJy mat kf't yet to be fuHy developed. Two sets in different parts of the house. are the only ~leans for satisfying a f:lm· ify whose younger members want dance music while the old folks want lectures or seOli~cJassical music. And even where two sets cannot be sold there io; a demand for an extra loudspeaker with remote control of the set which operates it.

From prf"sent indications there are no revolut-ionary changes in sight. The periodic flare·ups of pUblicity ahout radio vision do not me(ln that satisfactory re­ceiving equipment can be put in the hands of the con­sumer during 1930 at least. Under any condition the most promising re!'learch is being done along lines which win require a specialized receiver entirely dis­tinct from that used to receive speech and music.

A number of l1ew battery~operaterl sets will be in~

troduced for use in pJaces wht:re alternating current is not supplied, including country homes, automobiles and motorboats. Many sets will be equipped for rp­mote control, with the po!;sibility that some will be so half-baked as to give a black eye to all of them.

One disturbing fActor -in the general situation is the delusion on the part of some manufacturers that all sales obstacles can he surmounted by additional seIling pressure, thus e~anding the markel at wiJI.

This delusion usually becomes apparent in eITorts to force more sets upon dealers than can be sold without price cuts. The dealer has little or nothing to say about policies which are dictated by the factory and too often has been left to hold the bag. Too many re­ceivers forced into the hands of the dealer will force the dealer in the hands of the reCe1VE'f.

When distribution is accomplished through the job­her he can do much to creat~ a. strong, profit.making organization for the manufacturers if given the right kind of help and if consulted before any drastic change is made in policy. This should include a cJeanup Of take up of old models before new models are intro­duced. Furthermore new models shou1d not be fea­tuted unless they contain enough mechanical improve­ment and labor'itory design to justify the change. The factory's biggest problem is to huild dealer confidence and siltisfaction.

R:\PfO FIIH f,\NfTI'RY. I'J1Q

II

Page 12: ~EMLE~ - World Radio History...The renovution of the club house is ubout completed. Members of the Civic Club ilre finishing the inRi~e, which consists of painting the walls dnd refinishing

JlteAe companieA Iteached .i..nto /UUtal- communi..i.i...eAJ aJld welte a !jodAend to the ~eAA ifl. i:.h.e mi.dweA.t and weAt wltelte it migM be a ItUfld/ted miLeA to a JULrii.o Ilto/te.. JlteJj pltovUed a lleL ~It al-mO!lt anff p'Ochei.boOkJ and thw Cltedi.1. /taleA welte with-iJ? /teni.h. 0 t the p'0o/telt population. Show me a companff todaff wh'.Lch w,{J.1,j},.iJ;e a fJ»11Aantee all [}Ood all tholle maiL-oltdelt tiAIM.. 0 t{-PAed !

9 Ilent ff0Wt edi.1.olt a COP.ff ot one Ilucft catal-o[J1Le and i:.h.eiA CWltomelt folicff wllich !J i:.h.ougM Wall VeA.ff f}JJod and have Ilome otheltJl aYaiLable to UIle Welt.

9 have been /taiJ:;.¥ bUllff thill Pallt month and ftaYe not cWne too weUj;jf-div-UJfA09--1 ( Ilee JlWap-JlhoP} ed.). !J did /.ind a nice ':/.e. tomb!ltone, /tai:.h.en. di..{-{-eltent, which 'lookll and /tUlU [}Ood.

lIope to !lee ffOU all at the next medifl.f}'J

!! OLUlAJ JOeJj

( ediled exeeltpt ot a leileA. (Aom Joe JompkiM, Sal-em)

12 4/8/80

Page 13: ~EMLE~ - World Radio History...The renovution of the club house is ubout completed. Members of the Civic Club ilre finishing the inRi~e, which consists of painting the walls dnd refinishing

@IJ! by T.J. ----------------------

WeLL, weLL one. ot oWL 01dJ...aJzde/1A up Walk Walk wa?,-, name. of- ~ai SieJl)a:! / one. o/. f-eJl) w/w have. ~e.ni 1.11. a A.Mwn~ ot i:Ae.i.A. f-buu ove/t the. mol/1M' ~U1Ce. i:AlA column haA. be.en in vriAiance., hM dn..o !!Re.d 1M a line. ie.ll.w.~ 0 /. hlA oco/!;iAil-ion 01. a {l)i/ 1 j(J? 68 a :UWJ7A. Re.cyA.. ~in~ W.e. Vt. 1 '/J (md Vt. 2'~ .7 II WW 1 C.!L!J.Ai:al ~(d, II fJ CV1.IT1ah. v a/twmeteA ~et will 199 tuh e.. 111.1.0 he. hM a 0 i...f1 (J) MiMn U ni...o n clock to admi.A.e.. !J do n 'i know i...t he. p£anA to haYe. (J). U. wUte. in a cunhwl line. OA. nut.!

Bill lJelIf!{! p'i...cke.d up a do3-e.fI OA. ~o 2.5 v. :b.!.bM loA. a buch., ]A.oub1,5hoote/1A le:a{Leli lilA. e.aJti!! ~~i II 5W-3 Nail. j 1931 in ~od con.dJ..tJ...on j a NatJ...onal 1'/[-173 ( /948 in mi...nt concl.J..liwn • iVoi bad /oA. aJl lIu[}1L!J.t IuwL

lJi...ck lIowa/td,ha-i /Ulll into ~ome. f!uh.0.~?) whi.c.h. we. all hope. can 6.!'h laiM [allle.ilM. lie. di...d f.{".nd a 6atch of. !J.R.e. ~oce.~, dafui) J/tom 1915 ! lJi...ch. ~WM (ha;t he. hoA 6dA aJld pi...e.CM o{.. iV.W.'Radi.o [0. A.OCWM aJld lUaJlU to ~e.t in toudl will oi:he/1A w/w would Like. to Uta.de. back aJld /oA.i:A will hi...m wdh i:Ae. u.LtiJllaie. A.Mu1i: a complete. ~e.t /oA. each one.. lin!! iake/1A ?

!JOUlL Ole! e.di...toA. ha-i juAi uncovMe.d a cache. 0/ OVM 200 ball€/tff MM, /Ulllnin~ i:Ae. ~ pwm UV-199~ to loctal and oi:AM 1.4 v. ~p'M. '!) will not deal will '99~, ()Iilp.. , 22~,6ut!J do /lQve. a ~u/tpk 0/ 30~, IJ4~ 1 J5~, 11I4J1, 1 J6~, 19~, 49~, mainl!! be.c~e. !) aJAe.ad?,­had enough 0 r i:AMe. to f'i!l mo~i o!-. mff. ne.e.d!J.. (fh'li 0 I. the. OldM ~eli ~i.Jl~ 01 -Il~ CaJl be. PJ1.e.d wi.l.h. 30~ aM i...mp'A.Ove.d PM??/tmance. will 6 e. had, r 0/ COU/1..l1e. i:Ae. /i!-. vo'Lta..[Je. ~t be. A.e.du.c.e.d) i...t the. ~ockph.. will occomoda;l:..e. them. JhMe. i:.tdJM WMe. acF,e.d will i:Ae. unde/1Aiand-ing. thai i:Af!{! b e. ~e.d i.Jl i:Ae. A.e..h.a}; i...1d..a:tio n 0 {.. the. 0 lde'!.. ~eU OA. in vi...ni..afje. i:.tdJe. cLi.Apla!f!1. !J ~o have. a ~­f!..l:!I. ot OldM i-!lPM whd a/te. de.f'!md 61.11.. ~able. M

p.£1e/1A /oA. i:Ao~e. ~eli wlur.h. w.i..il neYM be. calle.d on to be. opVLaii...ve., meAe1!! objeiA.-tF-a/ti

50 lonf} aJld ~od h.wd:J.n..f}, 4.

13

Page 14: ~EMLE~ - World Radio History...The renovution of the club house is ubout completed. Members of the Civic Club ilre finishing the inRi~e, which consists of painting the walls dnd refinishing

CARToon c~IPPlne~

"Quick! Gimme a tube of Jiffy tooth paste. The radio announcer says I tan't be without it for another minute!"

14 '"You're right~ ma'am-it!!! hunted out!"

Page 15: ~EMLE~ - World Radio History...The renovution of the club house is ubout completed. Members of the Civic Club ilre finishing the inRi~e, which consists of painting the walls dnd refinishing

Bob J/tOu;t: "11 woman m a whle --tud. iA --ticmdll1f1t on tile JJ.h.OuldVlA 0/ a man ten /er>L awaff. and wavmff a {J--ar/'·

WQM,b/27/36 IInnc.: ''Jake pi..c:l:.wte--t 0 t :the. CA.J.dA.en and o:theA evenU tltat happen aJwlmd the Iwme".

WIi!lJj, 7/3/J6 I1nne.: ''/Ie can --tpea!,- aimO.1t mteLLi..ffeni1ff on anff --tub-

joci. " (jj(j/l/I1, 6/21/36 tV ew--t C omm. : "'Road --t.ide d,La~Ae--t WeAe /tepo/Lled a1-<~v e wilh dead gJUl/1/JJw p P eJUJ.. " WIIO, 6/30/36 IInnc. : "Jo/t /tent: B erhoom,; w a ffounfl- ladff will brLck ex­po--tllAe and veAff plea-1.ing (-:wnt vi..ew. '

W§!I, 7/6/36 lIomemaft.VlA Ji..p--t: --tiXJl down. "

" II mcUl MWuld /temam --tLalld.iJ?g wd.il /le

Willi, 7/6/36 ** ** ** **

!In :thi...1 --tame peAwd.Lcal WM a --tw/tff aiJold an announCeA who --tpent the --tummeA will a wUJti.n[f /tOad Jlhow. When the --thow WM!l ':t plaffm[fJ he .1.peni. hiA time i..ll tho--te 11::Uw..n[fe tOWn!l bff enfJaffl.n[f a /teal e--ttate --tale.1flUUl to .1how h-im iJte late-1.t in home-1. and lou about tAe (])tea. !JI-:the I-ellow [fot a ld.tle dull, he meAd!!: menwned ano'tAeA /t'eaU.o/t m wwn and the act.Lon UIludLLff p.Lcked up. §/teai. waff to --tee :the wwn !

** ** ** **

Page 16: ~EMLE~ - World Radio History...The renovution of the club house is ubout completed. Members of the Civic Club ilre finishing the inRi~e, which consists of painting the walls dnd refinishing

~WRP $NQP WANTED: Six tubes type UV199 for an RCA

Victor Superheterodyne Radio. Please call collect at 504-675-5781 and inform me of the price. James E. Richardson, RRl, Box 50D St. Amant, La., 70774.

• • • • • • • • • • • • • • • • • •

WANTED: Sodion tube, Kellog 401 and VT-1s and VT-2 tubes and a cabinet for a Federal 59 Radio. Pat Stewart, 1404 Ruth, Walla Walla. Wa., 99362

• * • • • • • • • • • • • • • • • •

FOR SALE: Lots of tubes to sell. 2 and 3 number I.D.s, 201s, 408 and 50s.

Model 30 A.K. battery set. Notubes. Works o-k. $65.00

Grimes Reflex, no tubes. 575.00

3 tube flat front Kennedy Model 5 with 3 UV199s. You bid.

Model 33 A.K •• no tubes. $65.00

AIL above by Joe Tompkins, 3796 Hulsey S.E., Salem, Ph: 362-8071

• • • • • • • • • • • • • • • • • • FOR SALE:

"

RCA console, M,del K 80. Works OK. sounds good, all original. Cabinet in fair to good shape. $30.00/ offer. Bill De Vey. Ph! 635-6746