to the aper- The engravings represent an electric telephone in the inches, and while the spool is being wound, great care tured block a bottom piece, C, by means of glue or simplest form. This instrument may be made by the should be taken not to break this projecting end of the small common screws.… … phragm, H, is placed over the mon screws. circular aperture of the dia- TELEPH0NE-PEB8PECTIVE VIEW. Fig. 1-SIMPLE One leg of the magnet is SIMPLE TELEPHONE-SECTIONAL VIEW. Fig. 2. phragm cell, it will form a broken off, as shown. To the diaphragm cell, A, make an aperture in which to magnetic…
Feet · Water · Wbicb · Diaphragm · Witb · Scientific American · Tbis · Emin pasha · Captain forbes · Double cyanide · Water works · Tbe scientific · Thin tin · Carbonic acid · Fine wire · Bell crank
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