Quote:
Originally Posted by Esteban
No at high distance, just 5 meters. Better for big items as treasure.
Now I replace magnetic speaker by piezo, this not disturb as speaker based on coil and magnet. Also consumption is lowest.
Now, I'll replace the audio amp of radio by circuit based on NE5534 or similar. This is just for to try ferrite.
Regards
Esteban
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So, you will connect the ferrite directly to the 5534 ?????
Or you will use the first preamlifier with transistors??
Regards