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Aldi Adventuridge Metal Detector
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<blockquote data-quote="wam" data-source="post: 458149" data-attributes="member: 2072"><p>Hi, long time I was not on forums ... . The mod for battery I did was simple. I have add small isolated DC/DC converter from 5 V DC into +/- 9 VDC. This ready converter IC is quiet tolerant on the input so if I remember it could go from 3.6 VDC to above 6 V DC. In the end I was powering all from 4 x AA batteries in series connected to 5 V DC input.</p><p>Original design is using two 9 V batteries in series. The problem with this design was that </p><p>one 9 V battery was for speaker audio power so one battery 9 V was discharged sooner. </p><p>Regards.</p></blockquote><p></p>
[QUOTE="wam, post: 458149, member: 2072"] Hi, long time I was not on forums ... . The mod for battery I did was simple. I have add small isolated DC/DC converter from 5 V DC into +/- 9 VDC. This ready converter IC is quiet tolerant on the input so if I remember it could go from 3.6 VDC to above 6 V DC. In the end I was powering all from 4 x AA batteries in series connected to 5 V DC input. Original design is using two 9 V batteries in series. The problem with this design was that one 9 V battery was for speaker audio power so one battery 9 V was discharged sooner. Regards. [/QUOTE]
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Metal Detectors
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Aldi Adventuridge Metal Detector
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