The simplest radio circuit

Published:2011/5/11 7:23:00 Author:Christina | Keyword: simplest, radio circuit | From:SeekIC

The The simplest radio circuit is as shown: The tuning circuit is composed of the L1 and C1, the wave-detection circuit is composed of the VD and C2, the coupling circuit is composed of the L1 and L2. Signal waveform of the before-detection and after-detection: The advantages and disadvantages of the direct broadcast type radio: The advantages: the circuit is simple, small-size, low cost, easy to carry and easy to make. The disadvantages: the sensitivity is low, poor selection. The advantages and disadvantages of the heterodyne type radio: The advantages: the sensitivity is high, good selection. The disadvantages: the circuit is complex, high cost, hard to make.



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