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The SE -50's performance and features, at only $49.95 are in a class by themselves. That sounds astounding, but so does the SE -50! The Pioneer SE -20 ($19.95) and the Pioneer SE -30 ($29.95) equal and surpass the performance of head- sets far more costly; and every Pioneer headset is supplied complete with its own permanent storage case. Pioneer has a reputation to live up to, and these headsets are fine examples of how we go about it. SE-30 SE-20 SE-50 PIONEER C ...More Value All -Ways! PIONEER ELECTRONICS U.S.A. CORP., 140 Smith Street, Farmingdale, L.I., New York 11735 (516) 694 -7720 Circle 8 on reader service earl www.americanradiohistory.com from Orarttfjam )Scfjoof of Ongíneeríng hag eonterrtb on Technician to -2 jofjn Poe the begrer of 13atfjelor of Same in [û(lectronici angineering Intl W tk tkmm goenewt. in ronnn. Olney( rM. aalam. b nqnee e.g beta tout ee tk *MM 7rdittaem ao. :MMA1128 larle, tl tee W w t¡iLg e1 u- 19 Advance beyond the technician level Become an electronics engineer The Grantham program in Electronics Engineering The Grantham educational program in Electronics Engi- consists of eight home-study "sections" and two weeks neering is designed to upgrade technicians to engineers, of attendance at the School in Hollywood. There are 80 mostly by home study. In this program you can acquire lessons in the first home -study section, and 70 lessons an extensive knowledge of engineering and earn your in each additional section, for a total of 570 home-study BSEE Degree - for greater prestige, better pay, and more lessons. The two -week attendance in Hollywood is re- security. quired after completion of Section 5. Upon completion of the two weeks in Hollywood, you are awarded the ASEE In America's race to the moon and outer space, more Degree, and then upon completion of Section 8 you are and more engineers are needed. By becoming an elec- awarded a Diploma in Electronics Engineering. Finally, tronics engineer, you can move into the forefront of tech- upon earning 24 required semester-hour credits in Eng- nology and engineering, and be an important part of this lish, Business, etc. (in other colleges) and transferring exciting age. You can help make things happen and be these credits to Grantham, you are awarded the Degree properly rewarded for doing so. of Bachelor of Science in Electronics Engineering (the The demand for engineers continues to increase; elec- BSEE). tronics engineers are needed in the space program and in The Grantham educational program in electronics many other military and domestic projects. In a recent places heavy stress on fundamental concepts of logic and survey conducted by the Engineering Manpower Commis- mathematics rather than on superficial manipulative sion of the Engineers Joint Council, it was found that skills. Since these fundamental ideas are largely unfamil- engineering employment in the electrical and electronics iar to many electronics technicians, it is necessary to de- industries is expected to increase by 40% in ten years. The velop them in a systematic manner. need for engineers is increasing faster than the population as a whole. The survey report indicates that in the next Accreditation and G.I. Bill decade, employers expect to need almost twice as many Approval new engineering graduates as are likely to be available. Grantham School of Engineering is accredited by the Commission of the National Home Study If you have the desire to be an engineer, the determina- Accrediting Council, is approved under the G.I. Bill, and is author- tion to stick to your objective, and a reasonably good of aptitude for mathematics and technology, the Grantham ized under the laws the State of California to grant degrees. educational program can produce the wanted results for academic you. But make no mistake about it, to become an elec- tronics engineer requires work. You must be willing to do -, RE -4 -69 that work; otherwise you can never reach your objective, Grantham School of Engineering regardless of what course of instruction you may choose. 1505 N. Western Ave., Hollywood, Calif. 90027 Please mail your free Bulletin, which explains how the Grantham educational program can prepare me for my Bachelor of Science Degree in Electronics Engineering. Grantham School of Engineering Specializing in Electronics since 1951 p1TED Name Age SC GG O 1505 N. Western Ave. z NHSC Address U Hollywood, Calif. 90027 ?9; City State Zip Telephone: 9T39 1/0A4 E (213) 469 -7878 l._ 1 Circle 9 on reader service card APRIL 1969 www.americanradiohistory.com NEW &TIMELY Volume 40 Number 4 RADIO- ELECTRONICS April 1969 RESOLUTION 1200 DOUBLED ELECTROCUTIONS IN COLOR TV TUBE IN HOSPITALS ANNUALLY CHICAGO-A new TV color tube designed largely Electronic and electrical by computer is claimed to instrumentation in hospitals have twice the resolution of helps save thousands of lives similar tubes by Admiral daily, but a recent computer Corp. The 79- square -inch de- study by a major insurance sign is being used in a re- company has revealed it also cently introduced 12 -inch takes some 1200 lives each portable. year in the US through acci- Spacing for the phosphor dental electrocutions. dot triad is 0.025 inch, corn - The figures, attributed to pared to 0.056 inch in simi- Dr. Carl W. Walter, a Boston lar -size tubes made by surgeon, were reported at a Admiral's competitors. recent meeting on reliability Other features of the and medical instrumentation. new tube are a temperature - The majority of the hospital compensated shadow mask patients killed were undergo- CONSOLE UPDATES OLD SWITCHBOARD for proper alignment between ing routine diagnostic test or MORRISTOWN, N.J. -The program, the console automa- electron beam and phosphor treatment. familiar telephone switch- tically records in its memory dot, and a low- voltage focus As reported in an issue board cluttered with patch a number of details about a system. The focusing feature of Electronic News, the cords has been phased out of long- distance call. This first utilizes voltages in the 400- causes of hospital accidental service for long- distance calls system to be installed will 500 range to maintain picture electrocutions appear to be here with a computer -like service all telephones in 11 sharpness despite voltage growing in complexity as the electronic console developed nearby communities. changes in the home. instrumentation use increases. by Bell Labs. A major problem is link- The system, shown under ing incompatible instruments test, automates many of the simultaneously to a patient, operator's functions, provid- creating an ac current loop ing her with a visual display LOOKING AHEAD that causes fibrillation-erra- of the called and calling num- tic beating-of the heart. by DAVID LACHENBRUCH Poor circuit design con- ber, plus information neces- CONTRIBUTING EDITOR sary for billing. The system tributes to dangerously high leakage is similar to the electrome- Toward color -fast TV current from some equipment on the chanical consoles replacing An new color television battle may be market, important and the problem switchboards throughout the shaping up toward an eventual decision by the FCC: is com- pounded by untrained Bell System, but is more flex- Should station signal tolerances be tightened or television hospi- tal personnel who ible. Controlled by a stored receivers made more elaborate and expensive? "wire" patients into a ground This prospect now seems probable on the basis of loop FCC PLANS RFI easily completed when a significant discoveries in field tests by an all-industry fau- RULE REVISIONS investigating "the cet or other equipment is engineering committee charged with touched. WASHINGTON, D.C. -The disturbing lack of uniformity among color television pic- Approval by Underwri- boom in consumer and indus.. tures." The field tests, in Chicago, used closed- circuit ters Laboratory is trial devices that generate and off -the-air material from three television stations re- not a requirement for hospital radio -frequency interference ceived on four "top -of- the -line" color sets, all with auto- in- strumentation, the Electronic (RFI) has a prompted Fed- matic chroma control (ACC), made by four leading eral legislation authorizing News report noted. Compa- manufacturers. nies are increasing the FCC to regulate the man- The tests revealed that variations in the transmitted safety by using isolation transformers, ufacture, import, sale, ship- signal permitted by FCC specs produced different results self- destruct fusing devices ment or use of any potential receivers. In a preliminary report, the com- on different and separate -ground RFI devices. Earlier Federal mittee chairman, K. Blair Benson of CBS, drew these three - regulations restricted the wire power cables. conclusions: (continued on page 4) FCC only to control of radio - (1) "Signal specifications related to hue and satura- frequency equipment use.