Handicraft for handy boys; practical plans for work and play, with many ideas for earning money (1911)
Hall, A. Neely (Albert Neely), b. 1883- · Boston, Lothrop, Lee & Shepard Co · leaf 287
f carbon should be cut from thebattery carbons, how their ends should be tapered toa sharp edge with a file, and how the brass, copper,or tin strips should be cut and bent. Cut the carbon 234 HANDICRAFT FOR HANDY BOYS pieces ij inches high and the brass pieces 2J incheslong by the width of the… … Fig. 307 5ectio(si Fig. 309.Fig. 307. — A Home-made Microphone Detector. (See Fig. 326.)Fig. 308. — How to prepare the Carbon and Brass Pieces.Fig. 309. — Section showing how to fasten the Pieces Together. and make the edge between the tips lower than thecarbon tops (see Fig. 309), as the needle…
Woodwork · Toys · Amusements
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