Radio and Television Today (Jan-Nov 1941)

A MESSAGE TO CAR OWNERS (Continued from page L2) acl very much like fractional Btatio generators, anil so may develop considerable static electricity which discharges through the underbodj of the car, causing interference if the radio antenna is nearby. Such brake static can be eliminated by electrically bond ing the brake parts together. But the simplest care for all such interference arising from the moving wheels ami tiros is to gvt the antenna up above the fonder ami hood ami so out of the field of interference. An antenna reaching above the fenders and cowl usually eliminates all such interference. Various moving parts of the driving equipment of the ear sometimes cause similar static. But these can all be eliminated for the most part by putting the antenna aloft. TRUCKS AND TRACTORS Passenger-car owners are not the the only people who enjoy automobile radios in their cars nowadays. Many big trucks are equipped with auto radios. Sometimes the drivers themselves have these installed, for companionship during their long drives. But in many cases the truck owners after careful study, have put in the radio sets as a safety precaution, to help keep their drivers from falling asleep during tedious night runs. Tractors and road machines now are_ often equipped with auto radios. It is a common sight to see a farmer plowing his east forty and listening to gay Manhatttan jazz as he swings around the furrows. And the next time you pass a road crew doing grading or pouring concrete, draw up close to the tractor or road machine and see if the happy driver there in his cab isn't happily listening to BMI melodies as he pulls his levers and gears. Marsh is Allied Sales Manager News from A. D. Davis, president and general manager of Allied Radio Corp., 833 W. Jackson Blvd., Chicago, is that Walter F. Marsh has been appointed Allied sales manager of the Chicago metropolitan district. Mr. Marsh has been in radio for 23 years, having had posts with RCA, Meissner, American Phenolic and other firms. He will take full charge of Allied's expanded salesrooms in Chicago, and will direct the industrial, sound and dealer sales. New Ken-Rad Rep The Russ Diethert Co. at 7910 Drexel Ave., Chicago, has been appointed representative for Ken-Rad radio tubes in the southern part of Michigan, the Toledo territory and northern Indiana. APRIL, 7947 NEW IDEAS ... OLD IDEALS THE first testing instrument bearing the name, Simpson, was announced less than five years ago. Today construction is booming on a new building that will double the capacity of the present Simpson facilities. What has brought about a sales growth as remarkable as this? At first thought you would probably say that it was due to the new ideas originated in Simpson Instruments — ideas like "RotoRanger" — three-way switching — replaceable units — and the many other new ideas that have blazed the trail for instrument design across those five years. But if you knew the men behind the Simpson product, you would know that there is a still better reason for this success. You would know that the new ideas have been expressed in oid ideals of quality construction that date back to the days when Ray Simpson as president of the Jewell Electric Instrument Co., and a group of associates who are still with him, were building and maintaining the high standard of Jewell Instruments throughout a long, successful career. That success is being repeated in the Simpson Instruments of today, typified by the instruments illustrated here. SIMPSON ELECTRIC CO. 52 IB18 Kinzie Street. Chicago. Illinois MODEL 300 TUBE TESTER A TYPICAL SIMPSON ACHIEVEMENT Tests loctals, single ended tubes, bantams, midgets, miniature, ballast tubes, gaseous rectifiers, Christmas bulbs, etc. Filament voltage from .5 to 120 V. Has three-way switching, neon short check, "good" and "bad" scale; percentage scale; tube charts in cover. Dealers net price ..$26.50 MODEL 310 SIGNAL GENERATOR Your kind of Signal Generator — designed down to the most minute detail for highest accuracy, greatest stability, minimum leakage and good wave form. Smooth vernier control permits close settings and knife edge pointer assures accurate readings. The big 9-inch meter dial makes it easy to read. Dealers net price $37.50 MODEL 260 HIGH SENSITIVITY SET TESTER A great value in a fundamental instrument — a high sensitivity tester for television and general servicing. Ranges to 5000 volts — both A. C. and D. C— at 20,000 ohms per volt D. C. and 1000 ohms per volt A.C. Resistance readings from 10 megohms down to 72 ohm and five Decibel ranges from — 10 to +52 D.B. Dealers net price $27.50