Show t. t Science f c Th In The News News' I Iy By y ORSON D D. D MUNN MINN LinD SeD 0 Editor Scientific American f When tw two industries arc are as closely allied as radio and television sion ion the further development of one lone one is bou bound d to bring improvements improvements improvements improve improve- improve improve- ments in the other Experiments I with radio have i 1 added d d e d tremendously tremendously tremendously to the advancement of r television And pry n now o 0 w V television r repays repay the debt j with one of the t. t j foremost gifts to r radio a d lobe bestowed bestowed be be- stowed t h his i s year It is a brand n new t w type of Orion Orson D Munn amplifier tu tube e I 1 not much big bigger bigger ger than a mans man's thumb but so powerful that it promises to revolutionize revolutionize revolutionize completely complete y all foreign radio reception The new tube tub now called simply Number 1232 was Vas developed in in the vast television laboratories maintained main main- main maintained by the Philco Radio and Television Corporation According to William H Grimditch Philco's vice-president vice in to charge of engineering engineering engi engl and research the new little tittle giant makes both short wave and commercial radio signals per percent percent percent cent stronger than i is po possible sible by hy either the present glass glas or metal u an-u amplifying tube Grimditch teh explained that the new tube was wa especially developed for television and as the device was perfected technicians technician found that it also worked on radios He points out that in addition to giving greater volume the tube also fur for the first tune time time I really reliable foreign radio reception reception reception recep recep- tion without an outside outside aerial A Anew Anew Anew new super in built-in aerial has been designed for use in in conjunction with the powerful little tube which eliminates not only the usual static noises noises traced to outside aerials but also cuts down on tube noises I IThe The ordinary amplifier tube lube is strained to capacity in ni sh short rt wave sets I It t not only ha has to cover a large range including amateur police and domestic short wave and foreign bands but it also must have enough over left power to pick up weak signals and enlarge them to clear dear understandable programs programs pro pro- grams Since the new tube has I three or four times time as much power as the average amplifier tube it stands to reason that the reception it makes possible will improve correspondingly correspondingly correspondingly cor cor- While the tubes tube's added power is Inot I j Inot not needed for fOl regular broadcast reception since the present tubes I generate enough power to cover er I Ithe the so-called so commercial band hand it will tend to tu cut down static and I tube noises even en over local stat stations on I IThe IThe The new lIew tube will be a real boon to television since it n i is is there that I the greatest need was felt for or a I powerful amplifier It will now be lie i possible to use fewer amplifier stages and therefore therdore television sets will contain less parts and I should have lunge longer lives In announcing the discovery of I the new tube Grimditch reported that hi his technicians had hall also made advances of equal importance in inthe inthe in inthe the fields field of air conditioning and I refrigeration |