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 161
ntrolling switches and other parts which require ad-justment are located on the cover of the cabinet. Thestandard wireless key at the left is of course placed inseries with the transformer primary circuit. Fig 78 is anenlarged view of this end of the cabinet and it showsclearly the arrangements of… … Fig. 79—The cabinet, showing the spark gap currents at full power or thereabouts the rotary gap is used.For the more delicate currents such as that required forvacuum tube treatment, the stationary gap is employed.By using the full impedance and closing in the stationarygap, a spark a fraction of…
Electric apparatus and appliances
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