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Hi all friends
There is schematic V3 of S.M.W with some changes compared to version 2 of this detector in this link (http://www.hobbielektronika.hu/forum...=198055), and a video with great performance on YouTube. Is there any PCB for this version of S.M.W?
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Hi friends
I made two circuits of the SMW v2 metal detector
But I had some problems:
1) In both circuits a low continuous sound is heard from the detector in all time
2) In both circuits when I touch the coils or some potentiometer the detector makes noise like when an object detected
Please help how can I solve this problems?
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Originally posted by salih View Postin my SMW I have problem There is an inverse relationship between sensitivity and volume key . When the sound is low Detecting coin in the air 40cm . When the sound is high Detecting coin in the air 29cm. I use BC517 Instead of MPSA13. help.
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smw 3 pcb shematic and all data
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These are my drawings SMW3
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