Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 176
a-gram, Fig. 190, where the successive groupsof a primary or secondary tuning coil arerepresented at 1, 2, 3 and 4. Mountedon a hard rubber drum are the coppersegments S-2, S-3 and S-4, which areslightly offset so that the successiveunits of the tuner winding are connectedin the circuit when the… … TAPS FOR STUD5 UNDER BLADE S i Fig. 190- -Sketch Showing the Construction ofTurn Switch, End makes contact with the taps of a multipoint switch (not shown) which cuts in groups, 10turns at a time. For example, when the switch S-1 has been turned, let us say, counterclockwise until all the turns of…
Telegraph, Wireless
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