75c _ APIB 1975 PUI in-iip,e, NEW IDEA N ELECTROI THE MAGAZINE FOR -i ;.._ ;,. ., . : . : - . 1 ; , I ai ....40 ...:`:T:.... e .. ... ..:, . _ e . e e ......... O .. e.... p , ... ..O ` . '0i6 O e : . r . o lî i , . w . i_ _ .. : : , . , _ e ... $ . '. ., lPi-! a . - - - . _ . - - a . - - + e Q..irk: _ :: :. .-:: :: .........- ,T ' .. -.. -. - . ., ....:... ....:. .. .0.. ., ., fiE fINSABACK °I . (il S11IW SNMOa! . Pt FßJGATION 61010 .. .. S1Z X08 ti r39r1H)S130 H M 40 leshooting Charts Y i 9L1V61 46MS4i0A S10 96i196 Jack Darr's Service Clinic * R-E's Replacement Transistor ectouy www.americanradiohistory.com . .., .,...., ,..!I!..,..!I u á r s r s r i + ,ri+ >+ s /11 1 551 411.- r SANSUI 881 is our finest hour. The most advanced model in the long line of our already famous AM /FM stereo receivers and it's not only our best, it's the best on the market today. Specs: 63 watts per channel minimum RMS into 8 Ohm load from 20 Hz to 20 KHz with no more than 0.3% total harmonic distortion. 1.8 microvolts sensitivity. Hear the SANSUI 881 at your nearest SANSUI franchised dealer -and be sure to pick up your free copy of "The Sounds of SANSUI" or write directly to us. SANSUI ELECTRONICS CORP. Woodside, New York 11377. Gardenia, California 90247. SANSUI ELECTRIC CO. LTD. Tokyo, Japan SANSUI AUDIO EUROPE S.A. Antwerp, Belgium ELECTRONIC DISTRIBUTORS (Canada) B.C. ScutsuL Circle ! on reader service card Circle 93 on reader service card --- www.americanradiohistory.com as een added to the world famous family 4 VOLT-OHM-MILLIAMMETER The pacesetters for over 40 years and still going strong! www.americanradiohistory.com Still the leader the time honored, ever popular SERIES 6 100 MA. ¡ tio4r. IOMA. ZERO OHMS AY%. Fast. accurate measurements of 28 time -proven ranges. Direct dial reading of Amp -Clamp ranges 500V.---- 10 000V. Ac 0.0 External access battery and fuse compartment Clip -type fuse holder and extra fuse Optional 5 kV slip -on safety probe 260 -6, complete with batteries. Multi- purpose, test leads with test leads and manual $75.50 combination probe and alligator clips 260 -6M, with mirror scale $78.50 260 -6RT, in Roll Top Case $84.00 Only 2 batteries ... one 9 -volt NEDA 1604 and one 26) -6MRT, with mirror scale, in Roll Top Case $87.00 1.5 -volt "D" cell NEDA 13F. Batteries supplied. Rugged taut band movement, varistor protected RANGFc AND THE EQUALLY POPULAR, VERSATILE, DC Volts: 0 -0.25; 0 -1; 0 -2.5; 0 -10; 0 -50; 0 -250; 260 -6P 0- 500;0 -1000 CIRCUIT OVERLOAD -PROTECTED AC Volts: 0 -2.5; 0 -10; 0 -50; 0 -250; 0 -500; 0 -1000 Reset pushbutton releases when over- DC Microamperes: 0 -50 (250 MV Drop) load exists. Will not reset until over- DC Milliamperes: 0 -1; 0 -10; 0 -100; 0 -500 load condition is eliminated. DC Amperes: 0 -10 (250 MV Drop) 260 -6P, complete with bat- AC Amperes: Up to 250 with optional Model 150 teries, test leads and manual $115.00 Amp -Clamp Adapter 260 -6PM, with mirror scale ... $118.00 DB Scale (1 MW 6001-2 20 to +10; -8 to +22; -6 to +36; Reference): +20 to +50 260 -6PRT, in Roll Top Case . .$124.00 Resistance: Rx1; Rx100; Rx10K And a broad line of Simpson Accessories are available for the Simpson 260 Family of VOMS Model 150 Amp -Clamp 30 kV DC Grip -Tip Vinyl Vinyl Sheath Catalog No. 00532 Probe Extension Ever-Redy Case complete with No. Catalog No. Probe Case Catalog No. 00533 test lead 00509. $22.00 Catalog No. Catalog No. 01818. $16.75 $29.50 00118.. $4.75 00805. $20.50 The World Famous Simpsonwww.americanradiohistory.com 260 Family Of VOMS Is Available And NOW... for the special needs of t solid state electronics indu ry G 10 C 5 04, 5 i5 20 50 0 30 ? MS l 50 9 150 30 ?0, 15 6 ° Z 2 ° 6 0 1 B Si466>OR `)U- )HM I[MIWMIMETEIt m/VD.0 tf V:.19DI StaiOn, wC aOV,r)1DI 260 SERIES 6 XL for extra ranges and features 13 for low -power ohms capabilities Ei Extra shock and drop resistant construction High impact, custom -molded panel and case X 33 ranges with extra voltage, current, resistance and low -power ohms functions cui Extra large viewing area with color -keyed scales Direct dial reading of Amp -Clamp ranges External access battery and fuse compartm?nt Clip -type fuse holder and extra fuse 260 -6XL, complete with batteries, Optional 5 kV slip -on safety probe test leads and mar ual $0.00 Multi- purpose, test leads with 260 -6XLM, with mirror scale $33.00 combination probe and alligator clips Only two batteries ... one 9 -volt NEDA 160 and one 1.5 -volt "D" cell NEDA 13F. Batteries supplied. Rugged taut band movement, varistor prote::ted RANG AND THE CIRCUIT OVERLOAD -PROTECTED DC Volts: © 0- 0.250; 0 -1; 0 -2.5; 0 -10; 9 -25; 260 -6XL P 0 -100; 0 -250; 0 -500; 0-10)0 AC Volts: 0 -2.5; 0 -10; 0 -25; 0 -100; C -250; Reset pus ibutton releases when over- 0-500; 0-1000 load exist ;. Will not reset until over- DC Microamperes: 0 -50 (250 MV Drop) load cond tion is el minated. DC Milliamperes: X 0 -0.5; 0 -5; 0 -50; 0 -500 260 -6XLP, complet with bat- teries, tesi leads and manual $125.00 DC Amperes: X 0 -5 (250 MV Drop) 260- 6XLMP, with mi -ror scale $128.00 AC Amperes: 6 ranges from 0 -5 to 0 -25) with optional Model 150 Amp -Clamp adapter DB Scale (1 MW600t X -20 to +10; -9 to +21; Reference): -1to +29; +11 to +41. +19 to +49 Resistance (Standard X Rx1 (6 f1 center scale), Rx100 (600 Power): -'- center scale), Rx1K (6000 D 5kVDC 5kVAC center scale), Rx1OK (60,(100 R Probe Probe center scale) Catalog No. Catalog No. Resistance (Low Rx1 (20 S). center scale), Rx10 (200 00506 00505 .. $5.25 .. $5.25 1 Power): 2 center scale). Max. open circuit voltage only 100 mV! Max. measuring power only 0 i.'5 mW! At Leading Electronic Distributors.www.americanradiohistory.com SIMPSON PRODUCTS encompass a broad range of: Analog and Digital Panel Meters, Pyrometers, Elapsed Time Meters, Meter Relays and Controllers, Events Counters, Volt- Ohm -Milliammeters, Digital Instruments, Microtesters, Electronic Multimeters, Temperature Testers, Illumination Level Meters, Photo Tachometers, Noise and Sound Level Meters, Electrical Safety and Microwave Leakage Testers, Cathode Ray Oscilloscopes, Insulation Resistance Testers, Clamp Type Ammeters and VOA's, Chart Recorders, Signal Generators, Automotive Test Equipment, Digital Frequency Counters and Timers, Portable Secondary Standards, R -L -C Bridges, Custom Engineered Instruments and other Special Testing Apparatus. INSTRUMENTS THAT STAY ACCURATE R Over 40 years of integrity in design, quality construction and easy availability has established Simpson as the leading supplier of highest quality test and measuring instruments. Through the years servicemen and technicians have become accustomed to expect long life and trouble -free performance from all Simpson products. Electronic and electrical equipment distributors throughout the world carry Simpson products in stock for immediate delivery. Though seldom required, parts, repair service and calibration, when needed, are available through a large network of Authorized Service Stations. For complete details on the entire Simpson 1975 product line, write for new 60 -page Catalog 4400 or call your nearest Simpson Representative. KATY INDUSTRIES SIMPSON ELECTRIC COMPANY 853 Dundee Avenue, Elgin, Illinois 60120 (312) 697 -2260 CABLE: SIMELCO Telex: 72 -2416 IN CANADA: Bach -Simpson, Ltd., London, Ontario IN ENGLAND: Bach -Simpson (U.K.) Ltd., Wadebridge, Cornwall IN Simpson Private, Ltd., Vikhroli, Bombay INDUSTRIAL INDIA: Ruttonsha- EQUIPMENT GROUP www.americanradiohistory.com The first in a new series of Aeon.. SERVICING RCA Audel® Service Guides- FOR 1975 By STAN PAM'S; "SER IIICING RCA FOR 7915" SERVICING RCA FOR 1975 by Stan Prentiss, is the forerunner of an entirely new series of specialized service manuals, developed by the Audel Division of Howard W. Sams & Co., Inc., to guide you in servicing the new products of the leading TV manufacturers. Here under one cover Is the first comprehensive directory of detailed servicing data and information for all '75 models of RCA Color TV, black and white TV, stereo, tape recorders, and radio. It is a complete guide for troubleshooting, schematics, replacement parts lists, and service tips, with full and accurate identifi- cation of all integrated circuits used, specific circuit writeups, and pertinent RCA training material. Invaluable for servicemen and do- it- yourselfers alike. No. 21155 $12.95 SERVICING RCA 'FOR 1975 will be followed shortly by 1975 service guides for other leading electronic home entertainment manufacturers. TELEVISION HOME TV -FM ANTENNAS CLOSED- CIRCUIT TELEVISION by Paul Lawrence and Hansen Elroy HANDBOOK 3rd Edition Tells and shows how to select the right by Leon A. Wortman antenna for the location, how to install, Covers the use of CCTV in industry, edu- control, and adjust it for best reception. cation, medicine, and commerce. Includes 208 pages, softbound. equipment requirements, use of cassette No.21076 $5.95 and cartridge recorders and portable re- corder units in CCTV. 288 pages, softbound. No. 21097 $7.95 KNOW YOUR OSCILLOSCOPE 3rd Edition HOW TO USE VIDEO TAPE RECORDERS by Paul C. Smith by Harry Kybett Video tape recorders are increasingly used Revised by Robert G. Middleton in education, the medical profession, sales, Explains the many applications of oscillo- and industry. This operational guide covers scopes, their circuits and functions, acces- the problems and maintenance of vtr, and sories, proper adjustments, and mainte- shows how to use vtr to record, play back, nance.