Radio doings (Dec 1930-Jun1932)

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THE DYNATROPE An Amazing New Invention — A Power Converter that Furnishes 110 volt, 60 cycle Alternating Current (Standard House lighting current) from your 6-volt Automobile BaBttery. This remarkable device has startled the radio world. It makes the AC automobile radio practical. Now you can use your home midget AC set in your car or yacht. You don't need ignition system suppressors or filters. You'll be surprised to note the same tone and quality of reception you are accustomed to hearing in your home. The Dynatrope is a power box of a thousand uses. Not only can you plug in any midget AC radio receiver (the average midget radio draws approximately 60 watts), but you can use all the household conveniences, such as curling irons, heating pads, immersion heaters, drink mixers, juice extractors, small electric fans, etc., that are rated from 40 to 80 watts. The Dynatrope is a miniature converter 4"x4"xl0". It is unique. There is no other converter like it. It is simple, efficient, durable. Installation is quick and easy — can be mounted to the bulkhead over the engine, under the hood. The Dynatrope is the Radio Sensation of the day. Investigate it! See it in operation! Try it out for yourself. List Price $3950 HUTCH -CARD CORPORATION, LTD. MON ADNOCK BUILDING SAN FRANCISCO • • • ELECRIC CONVERTERS THE POWER BOX OF A THOUSAND USES Page Forty-four RADIO DOINGS