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Type J dual control with line switch Type J resistor with short shaft Type 1 single -unit resistor with and lock -type bushing plain, short shaft Type 1 triple -unit resistor Type .1 single -unit with long shaft and 125v switch Type J dual -unit resistor with short, flatted shaft AN "INDUSTRY STANDARD" WHERE LONG LIFE AND QUALITY Type GP small variable resistor for printed circuits PERFORMANCE ARE NECESSARY Type J single -unit variable resistor with long shaft Type G small variable resistors -plain or lock -type bushings Type G small variable resistor with line switch Here are A -B variable resistors and potentiometers that are designed for QUALITY performance. They are available in many forms and sizes. The resistor element in all units is a solid molded ring (not paint or film) supplied for standard or special tapers. The resistance material, insulation, terminals, faceplate, and bushing are molded in ONE piece. You can expect improvement with use as brush wears smoothly to flat molded resistor. There are no welded joints, no rivets, no soldered connections. TYPE J -2 watts -in single, dual, or triple construction. With or without line switch. Dual units can be supplied with concentric shafts for individual resistor control. TYPE G & GP-1/2 watt- t/z inch in diameter. Type GP units have long terminals for printed circuit applications. TYPE T -t /2 watt- compact units for hearing aids and similar applications. A -B variable resistors are available in standard RETMA values up to 5 megohms. Type T small variable resistors with hand or screw driver operated plastic covers -for hearing aids and similar applications i Allen- Bradley Co., 1342 S. Second St., Milwaukee 4, Wis. In Canada -Allen- Bradley Canada Limited, Galt, Ont. ALLEN - BRADLEY RADIO, ELECTRONIC AND <strong>TELE</strong>VISION COMPONENTS 78 For product information, use inquiry card on pages 209 -210 Tele -Tech & ELECTRONIC INDUSTRIES June 1956
THE ELECTRONIC TUBE A "MILLION" APPLICATIONS does the work of transistors more efficiently, more reliably more effectively Now, another revolutionary development from Haydu's research laboratories ... The Low Voltage Beam Switching Tube (type 6701). An electronic achievement of importance in many applications including critical transistor operations. Haydu's basic ten -position Beam Switching Tube has introduced entirely new concepts for simplifying electronic circuits and designs. This new electronic tube is so versatile that any desired type of sequential or random switching of any number of positions may be obtained. The Beam Switching Tube has contributed new levels of speed, reliability and economy in unlimited applications such as: DISTRIBUTING SAMPLING COUNTING FREQUENCY DIVIDING CODING MODULATING GATING TIMING CASCADING MULTIPLEXING MATRIXING OSCILLATING LIFE TESTS INDICATE A LIFE SPAN OF 50.000 HOURS. For further information write . . . BROTHERS OF NEW JERSEY PLAINFIELD, NEW JERSEY SUBSIDIARY OF BURROUGHS CORPORATION i ì.n
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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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As We Go To Press .. . (Continued)
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As We Go To Press (Continued) Airbo
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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 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 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
Page 124 and 125: New Tubes & Semiconductors SILICON
Page 126 and 127: New Avionic Products TELEMETRY RECE
Page 128 and 129: 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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