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https://github.com/kareiva/wb7fhc-cw-decoder


Butuh

* LM567C
* Arduino


[[File:Wb7fhcdecoder.png|center|300px|thumb]]

BOM:
* LM567
* LED
* R 2K2
* Pot 10K linear
* D 1N4148 x2
* C 1uF
* C 220nF x3
* C 100nF
* stereo kecil connector

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