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Metal Detectors
General Metal Detector Discussion
Fake Fisher Gold Bug Pro detectors - be aware!
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<blockquote data-quote="grubstake" data-source="post: 549799" data-attributes="member: 4012"><p>Circuit boards are typically batch-produced by the thousand or more at a time, so dates etched into the visible copper layer are never the actual build/manufacture date for a particular finished electrical item. In this case it's very likely that all Rev 4 boards would have the same date, whenever the actual detector was assembled.</p><p></p><p>The detector's individual serial number may incorporate a year or year/month code that reflects its approximate build date (from memory Whites machines do so), or it may just be a sequential number series. Three million sounds like a heckuva lot of detectors to me, but maybe that's across First Texas' total production of Fisher, Teknetics, Bounty Hunter, etc.</p></blockquote><p></p>
[QUOTE="grubstake, post: 549799, member: 4012"] Circuit boards are typically batch-produced by the thousand or more at a time, so dates etched into the visible copper layer are never the actual build/manufacture date for a particular finished electrical item. In this case it's very likely that all Rev 4 boards would have the same date, whenever the actual detector was assembled. The detector's individual serial number may incorporate a year or year/month code that reflects its approximate build date (from memory Whites machines do so), or it may just be a sequential number series. Three million sounds like a heckuva lot of detectors to me, but maybe that's across First Texas' total production of Fisher, Teknetics, Bounty Hunter, etc. [/QUOTE]
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Metal Detectors
General Metal Detector Discussion
Fake Fisher Gold Bug Pro detectors - be aware!
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