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7Teecej 40m744- &we114 7le4va7atL Important Information for your data files - PRD REPORTS 4 o J o PRD DRY -TYPE LOW -LEVEL MICROWAVE CALORIMETER Invaluable for any precise low level measurement or power monitoring in systems. Unique, because it measures low microwave power with primary standard accuracy by means of thermocouples. No troubles with fluids, pumps or thermometers. Easy to use, accurate, rugged and reliable. Indicates average power regardless of modulation. Provision for null indication against standard do power. TYPE 666 FREQUENCY RANGE 18 to over 75 kmc /s ERROR: Because the intrinsic error is less than i- 1 % plus ±20 uw thermal drift, the combined error including instrumentation can be held to within ±3 %. Good approximations can be achieved within one time constant (1.5 to 2 minutes) POWER RANGE: From 30 µw to at least 1 watt cw SENSITIVITY: 35.40 av /mw (calibrated for each instrument) MAX. VSWR: less than 1.2. PRO HETERODYNE FREQUENCY METER Especially useful for precision measurements of microwave frequencies where accuracy combined with range is required. Takes the place of several cavity type meters each of which usually has a more restricted frequency range. Unlike other heterodyne frequency meters, Type 504 is simple to use. Both CRT and aural presentation are available as well as a new exclusive interpolating dial which saves time and avoids ambiguity. Lightweight, therefore advantageous for field testing of transmitters, receivers and signal generators. Will deliver a signal of precisely known frequency at the RF input connector when used as a calibrating instrument. 1 -1 A Wideband sweep Generator for Both VHF and UHF Television 1 -2 Ridged Waveguide --A Transmission System for a Wider Frequency Range 1.3 Metallized Glass Microwave Attenuators 1 -4 Microwave Power Measurements 2-1 Noise Figure and Some Measurement Aspects 2 -2 Frequency Measurement Devices 2-3 Precision Measurements with Slotted Sections 2.4 Impedance Considerations in Crystal Mixers and Their Application to UHF Tuner Design 3 -1 Microwave Detectors for Measurements of Relative Power Levels 3-2 Impedance Measurements in the 50- 1000 MC. SEC Range with a New Standing Wave Indicator 4-1 Microwave Attenuation Measurements 4 -2 A New Metal Film Resistor -the Polyohm 4 -3 Millimeter Waves 136 -PAGE CATALOG <strong>Com</strong>plete data on PRD Instruments with notes on theory and applications. TYPE 504 FREQUENCY RANGE: Measures 100 to over 10,000 mc/s. Generates 500 to 900 me /s and harmonics INTERPOLATION ACCU- RACY: 0.03% or better INPUT SENSITIVITY: -30 dbm at 500 me /s and above standards. CALIBRATION REFERENCE: 5 and 50 mc/s quartz crystal RESEARCH at DEVELOPMENT CO., INC. 202 TILLARY STREET, BROOKLYN 1, NEW YORK Telephone: ULster 2 -6800 Midwest Sales Office: 1 SOUTH NORTHWEST HIGHWAY, PARK RIDGE, ILL. -TAlcott 3 -3174 Western Soles Office: 737 -41, SUITE 7, NO. SEWARD ST. HOLLYWOOD 38, CAL. -HO -5 -5287 72 For product information, use inquiry card on pages 209 -210 Tele -Tech & ELECTRONIC INDUSTRIES June 1956
VARIABLE RESISTORS EAST COAST OFFICE Henry E. Sanders 130 X. Broadway Camden 2, New Jersey Phone: \Noodlawn 6 -1668 TWX No. Camden NJ 380 Phila. Phone: Market 7 -3129 WEST COAST OFFICE Robert A. Stackhousc 928 S. Robertson Blvd., Los Angeles 35, Calif. Phone: Crestview 4 -5931 T \NX No. BEV H 7666 SOl'TH \NESTERN U.S.A. John A. Green <strong>Com</strong>pany 6815 Oriole Drive P.O. Box 7224 Dallas 9, Texas Phone: Dixon 9918 CANADIAN DIVISION C. C. Meredith & Co., Ltd. St reetsvi lle. Ontario Phone: 310 SOITII AMERICA Jose Luis Pontet Buenos Aires, Argentina Montevideo, Uruguay Rio de Janeiro, Brazil Sao Paulo, Brazil OTHER EXPORT Sylvan Ginsbury West 40th Street New York 18, New York Phone: Pennsylvania 6 -8239 275,000 sq. ft. plant area ... 1500 employees .. . making ALL TYPES of variable resistors by the million ... for ALL TYPES of military and commercial applications. Dependable delivery. Exceptionally good delivery cycle due to enormous mass production facilities. A CTS control can be tailored to your specific requirement. Refer your control problems to CTS specialists today. ELKHART * INDIANA FOUNDED 1896 le exclrr.jürp g7tPCial'sls in ,Apcision ,//lacs ,Aoe/rrclion o'Y«rirr/lP Mesisforó
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TELE-TECH & ELECTRONIC INDUSTRIES S
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-1081 One of the Publications Owned
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Facts and Figures Round -Up June, 1
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PROGRESS either of two other 50 -oh
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testing components with Burroughs p
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REPRESENTATIVES Mr. Bertram D. Aaro
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m perex all -glass GERMANIUM DIODES
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Electronics Around the World Contin
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2=====l: As We Go To Press... saam
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As We Go To Press .. . (Continued)
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. FIXED Composition RESISTORS In al
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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 38 and 39: Type ML-6A. This unit is identical
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 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
Page 88 and 89: Design Of By J. E. WOODWARD, Sectio
Page 90 and 91: TI MM PULSE DELAY VT ULM PULSE WIDT
Page 92 and 93: Ì Fig. l: System installation plan
Page 94 and 95: o. -.4111111..._ '1.2 i OE BELOW FR
Page 96 and 97: Air -conditioned 28 ft. truck house
Page 98 and 99: i fGqfq 0/ 100 NOE TUBES5 NO.OF OF
Page 100 and 101: \- SECONDARY ELECTRONS GUN ENLARGED
Page 102 and 103: fin Air Cooling A By DR. M. MARK Fi
Page 104 and 105: . -. ' _ 220° 210° 200 190° 170
Page 106 and 107: I Vo AC MILLI- VOLTMETER The maximu
Page 108 and 109: Fig. 1: Linear and circular instrum
Page 110 and 111: CONTROL VOLTAGE SI BAND SWITCH Inge
Page 112 and 113: MIRROR MOTOR , SCREEN TARGET SPOTS
Page 114 and 115: CUES for BROADCASTERS Practical way
Page 116 and 117: , Designed with the future 0 ° S C
Page 118 and 119: REOy NGLER Beamed at the Greatest R
Page 120 and 121: New Technical Products BATTERY CLIP
Page 122 and 123: 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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