EXPERIMENTER AM -FM STATIONS - American Radio History

114 Pages·2014·5.04 MB·English

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Antique
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Universal
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Ammeter
AC
Pert -Board
elk
Phono Preamp
POwER O5C NIKE
REMOTE OUTPUT INPUT
HOW BAD IS
HIGHWAY NI -FI
TEST REPORTS
C8
International C -12B NAM
Frequency Meter RULES
CND
Meathkit/Magnecord 1020
0 -Track Stereo Recorder
FCC FIDDLES WHILE
Knight -kit Safari Ill
Portable CB Transceiver LICENSEES FUME!
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Introducing EICO's New "Cortina Series"!
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esthetically striking "low silhouette." Yes, you can pay
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CRAFT
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powered universal engine ana-
lyzer. Completely tests your total
ignition/electrical -s ystem. The
first time you use it j-us t to tune
for peak performance it'll have
paid for itself. (No tune-up
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one, the EICO 888 does all these
for 6V and 12V systems; 4, 6 &
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FREE 1967 CATALOG RTVE-12
EICO Electronic Instrument Co., Inc.
131.01 39th Ave., Flushing. N. V. 11352
y Send me FREE catalog describing the full EICO line of
200 best buys. and name of nearest dealer. I'm Inter.
ested In:
` - e test equipment ham radio
W stereo/hi-fi Citizens Band radio
. . automotive electronics
Name
Model 460 Wideband Direct -Coupled
$5apIn1n"up d0llu 9Ot6..Dg9 sCAWc5 iu l lvotTokesVmirc ttosia,ce ptairecvl$. i sc1ayeD4mn C9cap-. n.49l,di. 5m5 bmtiaatcwbel. riur foesaorendr . d .u cPnaoubmlsaophlr... L ACSdtitaydt ree ss Zip Mtut5ois2oore9n d.. se9c.l57o 2lonwk3roi2 tin,t h o-Ps$ rek 4ai5e9pk5.x 9-Wtcr5oal u-nPwsgTeeiiVvrase ke d a.Vo nnTUd V naMtiln.l.P dA4ru osmfbutreunia.scSlt-
Cast your ballot for a successful future!
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I.C.S. is the oldest, largest school tion. You learn from experts. Di- ;'5.'
of its kind. Over 200 courses for ploma to graduates.
men and women. High school, busi- Clip and mail the coupon now.
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Clip coupon-and take your first big step to real success! I.C.S., Scranton, Penna. 18515 National Home Study Council
_ , . a: i.. Ke'VgloS
INTERNATIÓNAL CORRESPONDENCE SCHOOLS
BOX 03974M, Scranton, Penna. 18515 (In Hawaii: P.O. Boa 41g, Honolulu. In Canada: f.C.S. Canadian, Ltd. In other countries: I.C.S. World, Ltd.)
WiNtheowutt cSopset coiar lo Pblaigcaktaiogne, forur sWh omme e"nH! OW to SUCCSEpEeDci,a" l tthrea inoipnpgo rpturonigtyr amboso fkc re t inadbuoustt rtyh e field I have inCdiocnatveedn iebenlto Pwa, yamnde na t sPamlapnl e lesson.
Name of the course in which you are interested
Name Age Address
City_ (Please indicate Mr. Miss Mrs.) State Zip Code Wording Hours_A.M. to_P.M.
Approved for veterans under new G.I. Bill.
Occupation Employed by Special rates to members of U.S. Armed Forces.- JE
Lwe
FFBRUART-MARCiIr 1967 1
AM
-TV Cover photo by NOW THERE ARE 138 RADIO
Leonard Heicklen
SHACKS COAST TO COAST!
EXPERIMENTER -
ARIZONA -P hoenix
ARKANSAS -Li ttle Rock
CALIFORNIA Anaheim,
Bakersfield, Downey, Garden
Feb. -March 1967 yCZ G `=O J3rn U >H .= z1= GLMorsoo uvAnent,ga eLinale VsH,i eawMb,r iasO,s aioLknola nHng idll,sB ,e ech,
CO*NCoTvEeNr THS/iINgDhEXli ghts TO ciu sO 24. m5 Ad RBFrreuasnneocd,ias ,cS oaS,n a ScDarainemtgaoe ,nA tnSoaa, n,S Saan nta
1i I- U Q' Q I- al Monica, Torrance, West
OC -
Covina
Ham Station in a Needle 22 CCOOLNONREACDTOI CUTD-e nHvaemr den,
Manchester, New Britain, New
Tuning in on the Body's Ills 31 Haven, New London, Orange,
-
Stamford, West Hartford
.Party Line Listening 42 . FGLEOORRIDGAIA - - AOtlralanndtao
ILLINOIS - Chicago
Dim View on a Darkroom Subject 44 KANSAS W-ic hita
*It's War! FCC vs. CB/Hams 46 LMOAUINISEI A-N AP o-rtla Nnedw Orleans
MARYLAND Lan-gle y Park
Spy In the Tie-FM Broadcaster 51 MASSACHUSETTS Boston,
Braintree, Brockton, Brookline,
Personal Hi -Fi 54 . CFraammbinrgidhgaem, , DLeodwhealml, , Medford,
Natick, Quincy, Saugus,
.Ceramic Pickup Preamp 55' SSpprriinnggffiieelldd,,- WW aolrtcheasmte, r West
-
*Lab Check-International C -12B 51 MMIINCNHEIGSOANTA DMeitnroniet apolis,
-
St. Paul
Instant BFO 62 MISSOURI Kansas City, St.
Joseph, St.- L ouis
Doorbell Silencer 64 . NNEEBWR AHSAKMA PSOHmIRaEha-
"New Mod" Soldier Goes Electronic 65 NEMWa nJcEhReSsEteYr - -P ennsauken
NEW MEXICO Albuquerque
*Lab Check-Heathkit Tape Recorder 69 . NEW YORK-Albany,
Binghamton, Buffalo, New
*Lab Check-Knight-kit CB Rig 71 OHYIoOrk ,- S cCheinnce-inctn aadtyi,, CSlyervaeculasned
OKLAHOMA Oklahoma City,
*Universal AC Ammeter 73 Tulsa -
-
OREGON Portland
Desk Lamp Mike Stand 76 PENNSYLVANIA -
Philadelphia, Pittsburgh
RHODE ISLAND Providence,
..Tape -Slide Synchronizer 77 East Provid-en ce
TENNESSEE Chattanooga,
-
The Invasion! Memphis, Nashville
81
TEXAS Abilene, Arlington,
Austin, Brownsville, Corpus
SW Propagation Forecast 88 Christi, Dallas, Fort Worth,
Houston, Lubbock, Midland,
.Tape Sings the Song of the Open Road. 89 San A-n tonio, Sherman, Waco
UTAH Salt Lake City
WHITE'S RADIO LOG, Vol. 47, No. 1-Page 93 VIRBeGacIhN IA-Arlin-gt on, Virginia
WASHINGTON Everett,
DEPARTMENTS Bookmark 6 CB Column 12 New Products 15 Seattle
Ask Me Another 23 Literature Library 112
2 RADIO -TV EXPERIMENTER
I- -
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RADIO ,SPECIAL" GET;=ACQUAINTED ;OFFER
aRA t
tFROM- THE (OÚNTRY'S LEADING
SHACK
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1,000 OHMS/VOLT
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at'
Sold
Thous
uuláá r Low Prices
Our Reg
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YOU S,AVEt
Measures a Mere 31/2" a 21/2" a 1" ONLY
Thumb -set Zero Adjustment
With Test Leads and Battery 95
Lowest price ever! 2 -color scale; o
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i1n0 0 3 KraÍ.n ge2s2; -400-2175. 0 ma DC; 0- 41,
HOBBYIST'S ONE TUBE RADIO KIT 2 -TRANSISTOR AM RADIO KIT
- Tunes AM Band ter?m With Crystal Earphone
1' from 540-1600 KC Solid State Circuitry
- é Hi -Q Coil for Ideal For Beginners or
Top S3en4si9tivi ty ` Do-lt-Yo3urs elfers ii
a' 93
28.001 28-002
Fun to use; easy enough for anyone to build. Fine reception across the entire broadcast band!
WIRELESS MIKE/TRANSMITTER KIT ELECTRONIC ORGAN KIT
"- '
'10A------- 'i - Broadcasts into Any .. q Better than 1 Octave
h' -' AM Radio at Ranges up 4,4k 101" Range! Easy to Play! ,
- to 20 Feet! A Family Favorite!
298 595
a ' I'P - r~
28-003 t 28-004
Ç Use as room -to -room intercom or "baby-sitter"! Plav songs on an organ you built yourself'
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,FILL OUT COUPON °AND MAIL`S TODAY. TO:
RADIO j,East: 730 Commonwealth Ave. Boston, Mass. 02215
Your Choice of SHACK West: 1515 So. Universily Dr., Ft. Worth Tez- 76107
Either $2 Book
=aeui?v;
` Itasts`av at Half Price! Please rush me the item I've checked below.
'in-s ueett 50 easy -to -build I enclose S plus 50r; for postage and handling:
5O r rtf. c frspraoordomliijode castt osts a iatm.e . 2p. -l ew ay "]nj; VWI2 --OiTTrMerueble,ne ss .2s R2 Re-M4da0iidko2ie.o7 ,, 2 2288.80-.000100 32 Cn OPBBloreogoaoaksl enº ,= s 2e21,,n 8 d66.0 220m-.I24Oe0 S7oO5 FREE 1967 Rodeo Shock Cot,log
-- I PROJE_Ci T intercom system. Name (print)
Each book entirely
1 different: Book 1, Street
62.1050; Book 2, City
slightly more
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FEBRUARY -MARCH, 1967 3
EF,r FEB.-MARCH 1967
SCvp
1`4 SLc otTT
"'1,1:111.0/ rF .- . +, , e .
."
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EXPERIMENTER
Dedicated to Ameriee'e Electronics Experimenters
-_~
Y .w : ----nk JWUAL2IACNQ LM/K. MSDIE4N31K3IE WIC2 Editor
RICHARD A. FLANAGAN Manopina Editor
ELMER C. CARLSON Technical Editor
KOD1752
SCOTT'S NEW
HELEN PARKER Edstoriai As tout
ONE -AFTERNOON EUGENE F. LANDINO Art Editor
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TUNER KIT IRVING BERNSTEIN Cover Art Director
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DELIVERS AMAZING
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FET PERFORMANCE
CARL BARTEE Production Manager
Now you can get factory -wired per- HELEN GOODSTEIN Assistant Production Manager
formance from a kit that takes only one DAVID COHN Promotion Director
afternoon to build! Scott's new LT -112B WILFRED M. BROWN Kit Dirieion Manager
is the only kit with Field Effect Transistor
circuitry, enabling you to enjoy more JOSEPH DAFFRON Croup Erendirc Editor
stations more clearly. Interstation Muting
Control effects complete quiet between President and Publisher
FM stations ... oscilloscope output al- B. G. DAVIS
lows laboratory -precise correction for Erecutiee Tice -President and Assistant Publisher
multipath distortion. JOEL DAVIS
"Scott's LT -112 ... is one of the finest Vice -President and Editorial Director
FM stereo tuners we have tested and it is HERB LEAVY, KMD4529
easily the. ..b est kit -built tuner we have
checked Because of its simple con-
struction and trouble -free nature, it is a RADIO -TV EXPERIMENTER, Vol. 22, No. 1 is published bi-
logical choice for anyone who wants the monthly by SCIENCE & MECHANICS PUBLISHING CO., a subsidiary of
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LT -112B specifications: Usable sensitivity, 1.8 µV; Cross tPhL e- 2-U6.2S0.A0;. aCnhdi cCagaon:a d5a2. 0A dNv.e rMtisicinhgig aonff icAevse: .,N e5w27 .Y0o3r3k0, ; 50lo5s P aArkn gAevlees.,:
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For complete information on the Scott LT -1128, send for sentative: Jim Wright, 4 N. Eight St., St. Louis, CH 1-1965.
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Guide to SCcuosttto m.. . Swtehreeor.e innovation is a tradition EanDdIT OwRillI AbLe ChaOnNdTleRd IBwUithT IOreNaSso mnuasbt leb ec aarcec; ohmopwaenvieedr, bpyu brleistuhrenr paosssutamgees
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4 RADIO -TV EXPERIMENTER
SHOPPING A T
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A selection of products available by mail for readers of Radio- TV Experimenter
All merchandise sold on a money -back guarantee. Order Direct by Stock No. Send check or M.O.
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5
FEBRUARY -MARCH, 1967
STEP, UP YOUR INCOME
Learn at Home to Fix
ELECTRICAL
APPLIANCES
.á.
If you have a business or job in Radio -TV Servicing
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Soft cover
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UNCONDITIONAL MONEY -BACK GUARANTEE
PRINTED CIRCUITRY I Please rush my Progressive Radio 'Edu-Kite' to me, as Indicated below:
nas oewrAPv itrc iniinnntgcoe ldu dIinenCcssri trercauPusmrieti netneIStnd i g ntphCarailci tr ecI,nu cjaiettnrhc yet,o d re", YtEeoacd uto u. nbmKiuqaiuitnld"ey CheRtDcoekoe gllusuox lnaeper l umbsmoo odxRd eaelt odl 5io3I$ n126d.69 i.c59Ta 5Vt(. es P aamcrhetso iacsJe a rceokgfp uomlta orwd eomlr tohd e5l,1 5e.x)c ept with superior parts and
Radio and TV troubles. This revolutionary Check one box to indicate manner of payment
nbTeeVwcA o mstPeientrscgi.nh nteipqdou peu Claoirrf curiiant d ioics o mcao mnsseptrrceuicacitla iol nra idnisiosu lanatenoddw f] SSI ehenipnd cl"moEsede uF-fRuKElilEt " paCad y0dm.i0teio.n nt.I a lSw hiilnilp fo pr"amEy adptuioo-sKnt aitgd" ee.ps ccsritb ipnagi dE. tlu-Kit."
cdhuacstsinisg omn awtehriicahl hwahs ichbe etna kdees potshiete d plaa cec ono-f Name
wiring. The various parts are merely plugged Address
in and soldered to terminals.
Printed Circuitry is the basis of modern
Asuubtojemcta tiIos n a Elneeccterosnsiitcys . toAd ayk nofowrl edagney onoef thinis. PROGRESSIVE "EDU-KITS" INC.
terested in Electronics. 1186 Broadway, Dept. 540NN, Hewlett, N. Y. 11557
J
FEBRUARY -MARCH, 1967 7
Bookmark
ductance, reactance, resonance, frequency and
wave -length, "Q" factor, impedance, conduct-
ance, susceptance. admittance, transmission
lines, vacuum tubes. DC meters. trigonometric
relationships, Ohm's Law for AC and DC cir-
cuits and others.
--G
ALUEO
ELECTRONICS DATA'
HANDBOOK c . r
When a Pioneer Speaks
...it's time to listen! n ,.,,,,,....al S11o2f t pcaogveesr
75 cents
Basic formulas are given for tubes and tran-
That's when you'll hear the optimum in tonal
qbeusatl.i ty . . . sound reproduction at its faithful sainsdto ras:lp haals -ob etbaa sriec lattiroannsshisiptos.r sIynmclbuodlesd. cinir ceunitgsi,-
You can always count on Pioneer speakers and neering and servicing data are attenuator net-
speaker systems to deliver a quality perform- works; RF coil winding formulas; wire table;
ance. Every time. All the time. RF coil winding data chart; charts for induct-
Made by the world's largest manufacturer of ance, capacitance and resistance; metric rela-
sapbelea kaetr sp,o tphuisl apr rpermicieusm. audio equipment is avail- tionships; how to use logarithms; tables on di-
rectly interchangeable tubes, both foreign and
And you can select from many fine models-from
the unique, handsome metal -grilled CS -24 Auxil- American; pilot lamp data; ETA and military
iary Wall Speaker to the efficient, compact CS -20, codes for resistors and capacitors; Amateur
CS -52 and the Ultimate 5 -speaker CS -61 Book- Radio bands; TV channel and carrier band fre-
shelf System. All carried only by franchised quencies: recording tape playing times; sche-
dealers.
matic symbols and abbreviations; and Greek
A word from you and we'll send literature and
the name of your nearest dealer. alphabet designations.
A giant amid its contemporaries, the hand-
book is available, postpaid in the U.S.A., from
(Al CS -62 Bookshelf 3 -way speaker system (3 speakers). Allied Radio Corp., 100 N. Western, Chicago,
Oiled walnut enclosure. Meas. 25%".x. 153/x" x 1111/',. Illinois 60680.
retail price: $142.00.
(B) CS -61 Bookshelf 3 -way speaker system (5 speakers).
Oiled walnut enclosure. Meas. 241/4" x 1617/,," x 131/4", Good Buys. Some of the best books on
retail price: $175.00.
(C) CS -20 Compact 2 -way speaker system. Oiled walnut electronics for experimenters as well as engi-
enclosure. Meas. 131/4" x 8" x 81/2", retail price: $35.00. neers are published by the government and are
(UDn) iqCuSe - 2m4 etUall t-rgar -itlhleind owilaeldl owra lnbuoto kesnhcelolf susrpee. aMkeera s.s y1s6te7m/e". inexpensive. The Government Printing Office
x 105/8" x 43/4", retail price: $27.75. has just sent out a bulletin listing some of its
(eEn)c lCosSu.5r2e wCitohm pgaocldt m2 e-wtaaly trismp.e aMkeera s.s y1s3t1e/m2". x O8i1le/4d" xw 8a1ln/2u"t, electronics hooks. Of particular interest to our
retail price: $59.95. readers, I am sure, is Basic Theory And Applica-
tion of Transistors which is filled with circuits,
contains 263 pages and sells for only $1.25. A
PIONEER ELECTRONICS U.S.A. Another good one is Selected Semiconductor
Circuits, a 440 -pager priced at $2.25. s
e CORPORATION Theory and Use of Electronic Test Equipment
140 SMITH AVENUE, FARMINGDALE, LONG ISLAND, N.V. 11735 is a 158 -page book that every experimenter
[phone] should have. It's only $0.75. Another one to
have on the shelf for reference, and for learning
the whys and wherefores, is Basic Electronics, a
1
Navy training course covering 471 pages and
priced at only $2.75.
These books can be ordered by mail from The
Superintendent of Documents, Government
Printing Office, Washington, D.C. 20402. You
can get a list of books on electricity and elec-
E tronics.
8