for immediate delivery of General Instrument a it DETROIT _____,.w..... semiconductors 41' TOlE60 . 111 11 at factory prices /PURDUE call your UERSITYNIV )''t DAYTDN ., . stocking distributor INDiANAPOUS SPRINGFIELD CINC\NNAT1 The authorized distributors listed below carry a full stock of all General Instrument semiconduc- 3 vkijal! tors - and can give you imme- diate delivery from stock: Five million students in17,000 locationsinsixstates are expected to be within range of educational courses telecast from high -flyingairplane SILICON RECTIFIERS SILICON DIODES GERMANIUM Stratovision: New Business DIODES Televising courses from an airplane willcost $7 millionthefirstyear for program, gear MIDWEST COUNCIL ON AIRBORNE by experimentation with narrow - TELEVISIONplans to put a convertedband uhf(3-mc wide)allowing CALIFORNIA: NewarkElectric DC -7 in the air over Purdue Uni-more programs without using any co.. 4747 W. Century Blvd., Ingle- wood; Pacific Wholesale Co., 1850 versity, Ind., to televise high school more channels. Mission St., San Francisco; Shanks & Wright, Inc.. 2045 Kettner Blvd., and grade school courses to a six - "Stratovision" technique of re- San Diego; Valley 'Electronic Sup- ply Co., 1302 W. Magnolia Blvd., state area encompassing 5 millionbroadcasting tv signals from high- Burbank students. flying airplanes was originated in CONNECTICUT:TheBond Radio Supply,Inc.,439W. MainSt., Telecasting is expected to start1944 by Charles E. Nobles, mana- Waterbury next September. Meanwhile, equip-ger of surveillance radar projects, DISTRICT OF COLUMBIA: Sil- berne Industrial Sales Corp., 3400 ment will be tested and programs Air Arm division, Westinghouse, Georgia Ave., N.W. taped. Baltimore. ILLINOIS: Meequip Co., 5904 W. Roosevelt Rd.,Chicago; Newark The move means added business Two planes will be used-one for Electric Co.,223 W. Madison St., Chicago for the electronics industry. Over- immediate use, the other a reserve INDIANA:*Brown Electronics, Inc., 1032 Broadway. FortWayne; allcostsof the experiment and unit. Graham Electronics Supply,Inc., equipment will be $7 million the The experimental aircraft will 122 S. Senate Ave., Indianapolis MARYLAND: Radio Electric Serv- first year. use an antenna 30 ft. long which iceCo., 5 N. Howard St.,Balti- Programs will be prepared onwill be a two -element turnstile om- more MASSACHUSETTS: The Greene - video tape in advance by teachersnidirectional horizontal unit. This Shaw Co., Inc., 341-347 Watertown will intoa St., Newton on the ground. be streamlined later NEW YORK: Hudson Radio & Television Corp.,37 W. 65thSt.. The craft will cruise in a 10 -micylindrical tube shape with slots NYC; Sun Radio & Electronics circle at 23,000 to 27,000 ft nearso it can work omnidirectionally in Co., Inc.. 650 Sixth Ave., NYC OHIO: Buckeye Electronics Dis- West Lafayette, Ind. The tv courses a horizontal plane. tributors, 236-216 E. Long St., Co- lumbus: The MytronicCo.,2145 willbe beamed initially on two Each plane will have 4 trans- Florence Ave., Cincinnati; Pioneer Electronic Supply Co.,2115 Pros- channels covering a great circle ex- mitters (12 kw each) . pect Ave., Cleveland tendingtoDetroit,Milwaukee, Experiment gets under way this OKLAHOMA: OilCapitolElec- tronics, 708 S. Sheridan, P. 0. Box Springfield, Ill., and Louisville, Ky. month when Purdue University ap- 5423, Tulsa plies to the FCC for channels. In- PENNSYLVANIA: D & H Distrib- uting Co., 2535 N. 7th St., Harris- Schools Equip Selves structors and lecturers will be put burg; Herbach & Rademan, Inc., on video tape beginning in January. 1204 Arch St., Philadelphia Schools using the voluntary pro- WASHINGTON: Seattle Radio Sup- grams will have to equip themselves The planes will fly six hours per ply Co.. 2115 2nd Ave., Seattle WISCONSIN: Radio Parts Co., Inc.. with uhf receivers. day and broadcast twelve i -hour 1314 N. 7th St., Milwaukee Early transmission on standard -programs on each of the two chan- band uhf will be backstopped later nels. CIRCLE 42 ON READER SERVICE CARD 42 NOVEMBER 6, 1959 ELECTRONICS.