FM Radio Receiver circuit

Published:2012/9/26 21:35:00 Author:muriel | Keyword: FM, Radio Receiver | From:SeekIC

This simple fm radio receiver circuit consists of a regenerative rf stage, TR1, followed by a two of three-stage audio amplifier, TR2 to TR4. In some areas 3 stages of audio amplification may not be necessary, in which case TR3 and its associated components can be omitted and the free end of capacitor C5 connected to the collector of TR2. The critical part of the fm radio receiver is the first stage, TR1/VC1, where the wirings must be kept as short as possible. Coil L1 is formed by winding 8 turns of 1mm (20 swg) enamelled copper wire on a 6 mm diameter former, which is then removed. After that L1 should be stretched carefully and evenly to a length of about 13mm. FM Radio Circuit Diagram Transistors ListTR1 = BF199TR2 = TR3 = TR4 = BC547 Video presentation and photos of the working receiver by Aleksandar



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