TRF AM MW radio with LED as a AM demodulator
Medium Wave AM radio with old germanium transistors and yellow LED as a AM demodulator. Circuit can work with any HF transistors PNP or NPN structure. If use NPN transistors need use correct battery polarity, electrolytic cap polarity and LED polarity. Circuit use old telephone capsule ( TK67HT ) as a headphone. For lower voltage battery can use germanium diode, silicon diode.
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