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Type ML-6A. This unit is identical to Type ML -10. Range: 15.0 -50.0 mc. Type ML -14. Range: 3.0 mc-75.0 me. Type ML -6 except that it is provided Supplied per mil type CR -24 when Identical in performance to Type MLwith pins of large diameter. See drawing. specified. 6 except for height of the metal can. Pin diameter: .093 .002 Pin diameter: .062 .002 Pin diameter: .050 ± Pin length: .400 ± .030 Pin length: .188 ± .002 .005 Pin length: .238 + .010 - .015 ld CRYSTALS pay off in plus performance Accuracy ...uniformity...stability under toughest working conditions. Everything you want in a crystal is guaranteed you by Midland's Critical Quality Control. It's the system of checks and tests that guards the quality of every Midland crystal from selection of the raw quartz to final sealing of the unit. Midland makes more frequency control crystals than anybody else. Only a product of the highest quality rates that kind of demand. That's why with Midland crystals you can be sure of the finest in frequency control. Our engineering staff is ready to help you with any crystal problem, including development and production of specials for individual requirements. Type ML-6. Range: 1.0 me -125.0 mc. Supplied per mil Type CR -18, CR19, CR -23, CR.27, CR -28, CR -32, CR -52, CR- 54, CR -33, CR -35, CR -36, CR -48 when specified. Hermetically sealed metal holder with glass and metal base. Pin diameter: .050 ± .002 Pin length: .238 +- .010 - .015 Type ML -6W. Range: 2.0 mc- 75.0 mc. Same as Type ML -6 except wire leads are provided, eliminating the need for a crystal socket. Pin diameter: .030 ± .002 Pin length: 2.000 ± .250 Type ML -5. Range: 80 -200 Kc. Black phenolic holder -gasket sealed. Wire. mounted, silver -plated. The three pin Type ML -1A. Range: 2.0 mcbase fits standard 3 -pin mounting 15.0 roc. Supplied per mil Type socket. Pin diameter: .156 á- CR -lA when specified. Holder is .003 Pin length: .594 ± .032 phenolic, gasket -sealed. Pin diameter: .125 ± .005 Pin length: .625 ± .030 Type ML-4. Range: 2.0 me -10.0 mc. Supplied per mil Type CR -5, CR =6, CR -8, CR -10 when specified. Holder is phenolic, gasket sealed. Pin diameter: .093 - .002 Pin length: .400 .030 Type ML -13. Range: 90 Kc to 300 Kc. Hermetically sealed. Can is taller to accommodate the low frequency crystal blank. Pin diameter: .050 ± .002 Pin length: .238 + .010 - .015 Type ML -171. Range: 1.5 me -10.0 mc. Black phenolic holder. Pressure mounted, stainless steel electrodes. Banana plug pins. Pin diameter: Not Applicable Pin length: .825 Type CM -1. Range: 1.0 -15.0 mc. Black phenolic holder. Fixed airgap or pressure mounting with stainless steel electrodes. Pin diameter .125 ± .005 Pin length: .656 - .030 Type Ml -1G. Range: 10.0 -150.0 mc. Especially adapted to limited -space assemblies. Provided with two wire leads, eliminating need for a crystal socket. All glass, hermetic seal. No grounding problems. Pin diameter: .018 3- .002 Pin length: 1.625 ± .125 Type ML -18. Range: 5.0 mc-150.0 mc. This unit is a metal counterpart of the ML -1G. Hermetically sealed holder with glass and metal base. Available with fixed pins if desired instead of the wire leads illustrated here. Type ML -2G. Range: 200 Kc -150.0 mc. An all glass 7 -pin miniature of the same dimensional proportions as the eAK5 miniature receiving tube. Pin diameter: .040 ± .002 Pin length: .250 ± .030 Pin diameter: .040 ± .002 Pin length .234 ± .030 Wire: .017 ± .001 Dia. by 1.500 ± .062 long ML300 Series For color television. All- glass. 7 -pin base ideal for printed circuits. THE ... for every crystal application Developed to serve the growing trend to miniaturization, Midland miniatures are now available for every crystal need, including color television. They'll do an outstanding job for you. MANUFACTURING CO.,INC. 3155 Fiberglas Road Kansas City, Kansas MINIATURE SERIES Whatever your crystal need -conventional or highly specialized -when it has to be exactly right, contact Midland. FAST SERVICE on many regular stock types, available from inventory or on short order. WORLD'S LARGEST PRODUCER OF QUARTZ CRYSTALS ...every one produced to the industry's highest standards. 36 For product information, use inquiry card on pages 209 -210. Tele -Tech & ELECTRONIC INDUSTRIES June 1956
egg 12t If iY151 IF BY AIR! TOWER'S DEW LINE INSTALLATIONS GUARD US AROUND THE CLOCK Daul Revere had a snap when it came to warning the countryside of impending attack. A fleet- footed horse, a feeble lantern or two, and a sharp eye cocked seaward were all that he needed to alert an infant nation's defenses. Today, danger moves swiftly on lightning wings, from any direction. Our security is measured not with an hour glass ... but with a stop watch! TOWER designed, fabricated and erected major elements of the Distant Early Warning (DEW) line spanning the frigid wastes of northern Canada. Instant warning of any aerial attack is flashed from this radar barrier to assure our nation of those precious extra seconds. Write for free illustrated booklet TOWER tower fabricators and erectors the world over CONSTRUCTION CO. Sioux City, Iowa $ fictitious figure ... actual number is classified information Tele -Tech & ELECTRONIC INDUSTRIES June 1956 For product information, use inquiry card on pages 209 -21C 37
Page 1 and 2: TELE-TECH & ELECTRONIC INDUSTRIES S
Page 3 and 4: -1081 One of the Publications Owned
Page 5 and 6: Facts and Figures Round -Up June, 1
Page 7 and 8: PROGRESS either of two other 50 -oh
Page 9 and 10: testing components with Burroughs p
Page 11 and 12: REPRESENTATIVES Mr. Bertram D. Aaro
Page 13 and 14: m perex all -glass GERMANIUM DIODES
Page 15 and 16: Electronics Around the World Contin
Page 17: 2=====l: As We Go To Press... saam
Page 20 and 21: As We Go To Press .. . (Continued)
Page 22 and 23: . FIXED Composition RESISTORS In al
Page 24 and 25: As We Go To Press .. . (Continued)
Page 26 and 27: As We Go To Press (Continued) Airbo
Page 28 and 29: Atl\Iri Get on the a,Pr , rrlr^ì .
Page 30 and 31: MIT Offers Summer Program on Modern
Page 32 and 33: CAMERA PICK -UP TUBES FROM WESTINGH
Page 34 and 35: 32 For product information, use inq
Page 36 and 37: 1 CHOOSE YOUR 20 SERVO These high p
Page 40 and 41: i ru nSitron SILICON RECTIFIERS MIL
Page 42 and 43: Get an on- the -job demonstration o
Page 44 and 45: BON OFFERS MO HYPES OF 1% Here's 1%
Page 46 and 47: .... f HEREIT1F! A NEW Plug -In Tri
Page 48 and 49: Etched cathode FP plate for 85°C s
Page 50 and 51: -4-- 11 ---)(-- 11" copv.,A 41za--
Page 52 and 53: EIM 170 AC X600 Klystron covers -24
Page 54 and 55: NEW Size 8 servo combination rivals
Page 56 and 57: IF YOU USE COILS like these toroids
Page 58 and 59: UNION U Miniature Relays with the t
Page 60 and 61: Sqr2Jiex Coaxial Cal lé IS GOING P
Page 62 and 63: Precision Frequency Source... ULTRA
Page 64 and 65: BOOKS I PmenU Pending YLON CO /L FO
Page 66 and 67: WESTINGHOUSE 2 -AMP GERMANIUM POWER
Page 68 and 69: çStiiijh1hlw PRODUCTS 1-3 / "Co lo
Page 70 and 71: kes Tarzian R E C T I F E R S Selen
Page 72 and 73: B.F.Goodrich For duplicating free s
Page 74 and 75: 7Teecej 40m744- &we114 7le4va7atL I
Page 76 and 77: Design made easy with reliable RESI
Page 78 and 79: NOW...G-E SERIES -STRING SMALL TV P
Page 80 and 81: Type J dual control with line switc
Page 82 and 83: EXTENDED LIFE ELECTROLYTIC CAPACITO
Page 84 and 85: I RADARSCOPE Revealing important de
Page 86 and 87: Protecting and Packaging Electronic
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Design Of By J. E. WOODWARD, Sectio
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TI MM PULSE DELAY VT ULM PULSE WIDT
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Ì Fig. l: System installation plan
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o. -.4111111..._ '1.2 i OE BELOW FR
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Air -conditioned 28 ft. truck house
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i fGqfq 0/ 100 NOE TUBES5 NO.OF OF
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\- SECONDARY ELECTRONS GUN ENLARGED
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fin Air Cooling A By DR. M. MARK Fi
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. -. ' _ 220° 210° 200 190° 170
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I Vo AC MILLI- VOLTMETER The maximu
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Fig. 1: Linear and circular instrum
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CONTROL VOLTAGE SI BAND SWITCH Inge
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MIRROR MOTOR , SCREEN TARGET SPOTS
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CUES for BROADCASTERS Practical way
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, Designed with the future 0 ° S C
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REOy NGLER Beamed at the Greatest R
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New Technical Products BATTERY CLIP
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New Technical Products S -BAND LOAD
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New Tubes & Semiconductors SILICON
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New Avionic Products TELEMETRY RECE
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New Broadcast Equipment AMPLIFI ERS
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1/2 actual size ji HUGHES TRANSISTO
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'ono/ ELECTRONIC SOURCES Investigat
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International ELECTRONIC SOURCES Pr
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permeability is defined. Temperatur
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International ELECTRONIC SOURCES Th
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International ELECTRONIC SOURCES re
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nal ELECTRONIC SOUR ES the emission
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HERE ARE THE FACTS ABOUT TV MICROWA
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WASHINGTON eetem Latest Radio and C
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the portable recorder you specified
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ELECTRONIC Test Instruments 9 TUBE
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cnor MAN "XC" Plastic Film Dielectr
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IS RIGHT "NEXT DOOR" IN TERMS OF SE
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WIDE -BAND POWER OSCILLATOR 200 to
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NEW FROM ASCOP LOW LEVEL PW MULTICO
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ffi NEW Printed Circuit Precision R
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Amplifier Design (Continued from pa
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HE PROVED IT FOR HIMSELF! The new P
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Albert Lazoni recently joined the D
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1 1 DATA SOURCES Bil meti tsatäìr
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Be sure of dependable electrical pr
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DON'T DERATE DELIVERY DATES FOR CLO
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Here it is -the 1&/udc« Dat& on SI
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_ PROJECT: QUALITY CONTROL TARGET:
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Um OALOHM... ntiltiatune gut nw. Yo
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1 A. Finned Magnetron (Continued fr
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ASDE Radar (Continued from page 87)
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TWICE THE SPEED WITH DOUBLE LEAD SC
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for GUIDED MISSILES Encapsulated mu
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Regulation in less than '/so th cyc
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Color TV G/L/LI /L RADIO ® VACUUM
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What are YOUR paper tube reO requir
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F A Optical Radar EIMAC Vacuum Swit
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STANDARD True Hermetic Sealing assu
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Direction Finders (Continued from p
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41611 DETERMINATION fleWiO//?pi of
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Direction Finders (Continued from p
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Here's the fastest way to produce f
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i Mobile Unit (Continued from page
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PROBLEM #3 Design a miniaturized 40
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FREED OFFERS FOR IMMEDIATE DELIVERY
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PRODUCT INFORMATION? Use the cards
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It would take over 500 listings in
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Product Section & Code No. Cable, o
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Product Section & Code No. Meters,
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1956 ELECTRONIC INDUSTRIES DIRECTOR
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2- AMPLIFIERS, RF -IF Amplifiers, a
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General Riveters Inc Electro Mechan
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Coleman Instruments 318 Madison St
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Superex Electronics Corp 4 Radford
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Mattson Electronics Corp 1487 Linco
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Instrument Labs 315 W Walton PI Chi
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11- CAPACITORS, Fixed Capacitors, a
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Chicago Tool & Eng'g Co 8383 S Chic
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Mount Sopris Instrument Corp 1320 P
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Daystrom Pacific Corp 3030 Nebraska
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Hudson Associates 50 Drumm St San F
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Tech Labs Inc Bergen & Edsall Blvd
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20- CONTROL EQUIPMENT, COMMUNICATIO
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Gyro Electronics Oo 325 Canal St Ne
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Fretco Inc 406 N Craig St Pittsburg
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Austin O Div of Decalmakers 225 Fla
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26- HEADPHONES Headphones, crystal
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Rust Industrial Co 41 E 42 St New Y
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Acme Wire Co 1250 Dixwell Ave New H
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Eberline Instrument Div Reynolds El
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Sonex Inc 245 Sansom St Upper Darby
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Synchroscopes 43 Thermocouples 44 T
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Librascope Inc 808 Western Ave Glen
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Sensitive Research Instrument Corp
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New London Instrument Co 82 Union S
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44- MICROPHONE ACCESSORIES Micropho
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Continental Electronics 302 Oakland
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Dalmo Victor Co Div Textron America
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Electronic Specialty Co 5121 San Fe
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Morrow Radio Mfg Co 2794 Market St
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Valpey Crystal Corp Holliston Mass
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Olympic Radio & TV Inc 34-01 38 Ave
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Raytheon Mfg Co Equip Marketing Div
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59- RECORDING ACCESSORIES Discs, bl
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Delco Radio Div General Motors 700
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Sage Electronics Corp 302 N Goodman
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65 -SOUND REPRODUCING EQUIPMENT, MA
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Jensen Mfg Co 6601 S Laramie Ave Ch
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Racks equipment 30 Racks, film stor
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Aerovox Corp & Divisions 740 Bellev
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Electronic Products Co 111 E 3 St M
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Midwest Electric Products Mankato M
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Hertner Electric Co 12690 Elmwood A
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Linde Air Products Co Div Union Car
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Guardian Electric Mfg Co 1621 W Wal
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Cranephone -Femco Inc. Crest Lab -M
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BRAND and TRADE NAME INDEX Polyken-
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CONSULTING ENGINEERS ELECTRONIC IND
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DISTRIBUTORS SERVING the ELECTRONIC
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REPRESENTATIVES ( "REPS ") ELECTRON
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REPRESENTATIVES ( "REPS'') DAN GREE
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REPRESENTATIVES ( "REPS") *Brauer &
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1 -7770 -5067 -4692 ALPHABETICAL LI
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-1677 -2291 -5127 -2626 ALPHABETICA
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-3130 Williams ALPHABETICAL LISTING
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-7765 1 -6174 ALPHABETICAL LISTING
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ALPHABETICAL LISTING of MANUFACTURE
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-1060 ALPHABETICAL LISTING of MANUF
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-2700 -8454 -C I-Leo ALPHABETICAL L
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000 Directory -Localizer Index Unit
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THE H. CROSS CO. ROLLING TECHNIQUE
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BIRNBACH can supply ... Single -Gun
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high 0 MICROWAVE SPECIFICATION IS I
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WE MAKE THE KIND OF TRANSFORMERS YO
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ä EXTENDED FREQUENCY RANGE with th
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plastic molding INJECTION 20 machin
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Nom! A LOW COST BRIGHT RHODIUM PLAT
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PRECISION ENGRAVING on Metal- Plast
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1199 IRE (LOT d IMAM pIEt ..e.. u..
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IMPEDANCE COMPARATOR FOR LABORATORY
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ADVERTISERS in JUNE Tele -Tech ACME
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ELECTRICAL WIRING DEVICES Designed
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RCA Field Enginee RCA Application E
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