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Posts tagged best shortwave radio receiver

Best car audio receiver

Best car audio receiver Receiver tube Radio circuit using BF990A

Electronic circuit diagram audio amplifier AN7161N 25w

Electronic circuit diagram audio amplifier AN7161N 25w

FM wireless microphone for the President’s speech

FM wireless microphone is very simple to build and has a useful transmission range (more than 300 meters in open air). Although a small component count and 3V operating voltage it will easily penetrate more than three floors of an apartment building. This may be found anywhere in the FM band (87-108MHz) and transmission can […]

Motorcyle Alarm – The circuit board and switches must be protected from the elements.

Any number of normally open switches may be used. Fit the mercury switches so that they close when the steering is moved or when the bike is lifted off its side-stand or pushed forward off its centre-stand. Use micro-switches to protect removable panels and the lids of panniers etc. While at least one switch remains […]

120W Power Amp Bridge Mode

120W Power Amp Bridge Mode Circuit diagram using TDA2030, BD250, BD249

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