. Radio for everybody; being a popular guide to practical radio-phone reception and transmission and to the dot-and-dash reception and transmission of the radio telegraph, for the layman who wants to apply radio for his pleasure and profit without going into the special theories and the intricacies of the art . TWI5TE:DTAP ^ i<?9Ai. telephone: receivers Fig. 3.—Constructional details of the simple radio receiving set designed by the U. S. Bureau of Standards for the use of laymen. 288 RADIO FOR EVERYBODY holes for the binding posts, switch arms and switch con-tacts may first be laid out and
. Radio for everybody; being a popular guide to practical radio-phone reception and transmission and to the dot-and-dash reception and transmission of the radio telegraph, for the layman who wants to apply radio for his pleasure and profit without going into the special theories and the intricacies of the art . TWI5TE:DTAP ^ i<?9Ai. telephone: receivers Fig. 3.—Constructional details of the simple radio receiving set designed by the U. S. Bureau of Standards for the use of laymen. 288 RADIO FOR EVERYBODY holes for the binding posts, switch arms and switch con-tacts may first be laid out and drilled. The antennaand ground binding posts may be ordinary Ys inch brassbolts of sufficient length and supplied with three nuts andtwo washers. The first nut binds the bolt to the panel, thesecond nut holds one of the short pieces of stiff wire,while the third nut holds the antenna or ground wire asthe case may be. The switch arm with knob shown at V,Fig. 3, may be purchased in the assembled form or it maybe constructed from a thin slice cut from a broom handleand a bolt of sufficient length equipped with four nutsand two washers together with a narrow strip of thinbrass somewhat as shown. The switch contacts (W,Fig. 3) may be of the regular type furnished for thispurpose or they may be brass bolts equipped with one nutand
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Keywords: ., bookcentury1900, bookdecade1920, bookidradioforever, bookyear1922
