Ballard, William Cyrus, Jr · New York [etc.] McGraw-Hill company, inc. · leaf 104
tube _J\socket … filamentrheostat Fig. 39.—Single-circuit regenerative receiver. 80 ELEMENTS OF RADIO TELEPHONY The circuit used in the set illustrated in Fig. 40 is similarto Fig. 38. The condenser Ci is varied by the large knobon the extreme left and the large knob in the center varies
Radio
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