TUNER_FOR_A_M_F_M_PORTABLE

Published:2009/7/19 23:21:00 Author:Jessie | From:SeekIC

R-f amplifier Q1, mixer Q2, and local oscillator Q3 are all switched to perform same functions on f-m as on aim. Grounded-base oscillator Q3 requires careful design to compensate for transconductance phase shift at highest frequency of oscillation (118.7 Mc), Overall gain of tuner is 25.5 db at 88 Mc and 22.5 db at 108 Mc.-R. A. Santilli and H. Thanos, Portable Radio Uses Drift-Field Transistors, Electronics, 33:28, p 48-50.



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