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Show Wireless Receiver in Match Box THE smallest wireless receiver on record has been made b Kenneth R Hlnmanof Plain-field, Plain-field, X J , a boy only thirteen years old. All the apparatus except for the headphones' is confined within the dimensions of a regular safety matchbox match-box With it he is able to receive not only tele- spring clips, which may be made fast to a brass bed or a fence wire. Almost since the days when he was ''knee-high to a grasshopper"" this young inventor has shown marked skill in producing things minute and mechanical. While little more than a baby In his kindergarten days on his own initiative he cut out of paper and pasted together without previous drawing a velocipede, complete as to pedals and handle bars and wjccIb, on a scale so small as to cause all who sav it to marvel. Among his early experiments vas a micro graph signals but the music, sjgupjjQKBHQHHHKSiHSiHIIHBH9Ea'VEIiSHEIfl and PSM thirty miles distant. f This youthful inventor has R TOfttiBSp' . jjlflWE ,. "' the simplest possible turn." BBKwA V35S5cMP. rapped around outer lgefeBA'' jyfeatp-fW shell of the match-box I- a 'jL j j r; jU &kixi hi .Mir which serves as ' Stjt . a tuning coil. In the drawer ' ! " ;' ,.;.lvj of the buv i a crystal detec- jg v ' jfl 1 1- t The drawer is pro- ' 'iMmyjr ffr W flB ld.d with a spring liug- r jwBHKmg v SHBttaMfc. ' - r tJsH which bears against the coil T"".Xjg "fr&fr t - 4 jH of wire, the insulation ffira HM BCl aped off along the path of jPI the spring finger, which is ,'vi??2'' f moved in or out of the shell I'jjSllPvt i SP more ci le-.--. Kesisiance is , v .-s' introduced Into the circuit. Jr- tiius tuning tue instrument HBEtegv- ' I'M, , , ' ' - -'-"'' ' I ifc" 1 No batten is necessary. The , , , , , otnQllCtt uiii less receiving sec, actual size. i i -i' ! m ii' Is orovidC'il v. i'Ii phone so connected by wire as to convey quite audibly at a distance or upstairs the ticking of the dining-room clock. Once he surreptitious!) van a wire to the house next door where lived a small bo with whom he arranged to operate a homemade spring key vhlcb should cause a ticker tick-er on the window sill in his own home to chirp cricket-fashion much to the mystification of bis elders. |