Easy electrical experiments and how to make them; (1918)
Dickinson, Leonard Perley, 1874- [from old catalog] · Chicago, F. J. Drake & co · leaf 82
ation of the diaphragm and its attached carbon block. Connect the front carbon with a binding post on the topof the box, and the back carbon with a second binding post,by means of the wires described. Screw the cover and itsattachment to the box, and our transmitter is complete. EASY ELECTRICAL… … FRONT VIEW DIAPHRAGM REMOVES shoe magnet, one ounce of No. 36 double silk covered magnetwire, two No. 10 flat head iron machine screws one inch long,. 68 EASY ELECTRICAL EXPERIMENTS. and a few pieces of whitewood from % inch to Yz inch in thick-ness. Cut out a piece of wood, zYz inches square, and…
Electric apparatus and appliances · Electricity
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