Electric toy making for amateurs. This work treats on the making of electrical toys, electrical apparatus, motors, dynamos and instruments in general ... By T. O'Conor Sloane .. (1914)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · New York, The N.W. Henley publishing co. · leaf 103
eth of an inchthick. The tension of the shocks may be graduated by 102 ELECTRIC TOY MAKING. pulling the core out or pressing it in. Its removalgreatly reduces the intensity of action. Or else aspace may be left between the secondary and pri-mary, and a brass tube may be arranged to slide inand out… … Fig. 41. Recordons Induction Coil. It is disadvantageous in not admitting the convenientuse of a wire core. The core which is hollow, is made of soft, annealed RECORDONS INDUCTION COIL. 103 iron, turned so as to represent a spool or bobbin withdeep flanges at each end. It is mounted as shown,wound…
Electric apparatus and appliances · Electric toys
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