FM Microbug
Published in issue 379, July/August 2008
This bug circuit operates in the normal VHF FM band and can thus be received using any ordinary radio. The circuit based on a somewhat uncommon IC, the 74LS13, but with a bit of searching you can still manage to find one somewhere. The other five components (that’s all!) are all readily available. You might already have them in your parts drawer.
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Click below to download a PDF copy of this article from Elektor magazine. Please note. In view of the complexity of international markets, Elektor cannot guarantee the availability of components for this project.
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