High frequency apparatus, design, construction and practical application; a practical treatise for electrical engineers, electricans, physicians, students and experimenters (1920)
Curtis, Thomas Stanley · New York, Norman W. Henley publishing company · leaf 43
mployed.Since the introduction of the Federal radio telegraphiclaws which govern the wave length of amateur stations,the tendency has been in the direction of higher potentialsfor wireless telegraphic work. The higher potential per-mits a smaller condenser to be used. For other high fre-quency… … Fig. 9.—Primary and secondary on short legs of core and widely separated to increase magnetic leakage. This construction renders external impedance coil unnecessary The most satisfactory potentials, in the authors experi-ence, have been from 4,000 up to 12,000 in transformersranging in size from J4…
Electric apparatus and appliances
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