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 114
the base by means of stout brass screwspassing up through the base. Upon the upright piece, 2, is mounted, on either side,the primary coil of the oscillation transformer. The com-plete coil is really two Oudin resonators placed base tobase with primaries and secondaries in series. The detailsof the… … Fig. 53.—Woodwork for oscillation transformer The secondary coils are of 400 turns each, of No. 30D.C.C. copper magnet wire, wound in a single layer upona cardboard cylinder 6 in. in diameter and 8 in. long. Ineither end of each cylinder, a wooden head is affixed. Thedetails of the cylinders and…
Electric apparatus and appliances
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