VARICAP_TUNER_

Published:2009/7/3 3:10:00 Author:May | From:SeekIC

Uses silicon variable-capacitance diodes to provide voltage tuning over FM band of 87.5 to 108 MHz. Article covers construction and adjustment and gives circuit of stable noise-free regulated power supply that also provides required DC tuning voltage of 2 to 30 V. All six varicap diodes are Siemens BB103 of same color selection (all green or all blue).Resistors R can be any value between l00k and1 megohm．－L.Nelson-Jones,F.M.Tuner Design－Two Υears Later, Wireless World, June1973,p 271－275



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