See the Shortwave Radio Kit below! MTM Scientific, Inc. P.O. Box 522 Clinton, Michigan 49236 USA. Here are plans for building a shortwave radio receiver using 3 transistors, a simple homemade coil, an Air Variable Capacitor and some common electrical parts. Our AM/FM radio and audio portfolio includes receivers and audio processing devices for customized car entertainment system designs. These products cover a complete range of solutions—best-in-class analog- and digital-IF tuners, one-chip radios, DSP solutions, and analog signal processors.
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A small, simple AM receiver project with only 3 transistors. This circuit can pick up medium wave stations in your area. Description: It can use general purpose transistors, and in this example there are 3 BC109C transistors.