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Metal Detectors
Minelab
MINELAB F1A4 ex military metal detectors - tips, settings, questions
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<blockquote data-quote="Guest" data-source="post: 91907"><p>I understand the work that goes into the level 2 upgrade, even level 1.. but the price is high, too high for me, thats for sure..</p><p>Which is why I decided to give it a go myself.. Unfortunately my first attempt ended in me blowing up the regulator in my F1.</p><p>easy repair but had me worried for a few minutes..</p><p>Following that, the detector slipped off my bench and ripped the front panel right off LOL.. lots of re-wiring etc.. </p><p>So I guess you could say I've learned by doing..</p><p></p><p>My current frequency Mod is quite simple... I removed the old crystal, tapped the ground, added a 3 position toggle to switch between the crystals.</p><p></p><p>main crystal is 4mhz, so i added a 2.4Mhz.. worked out pretty well, goes a tad deeper My test involved a 4Oz chunk of lead covered in 6 layers of 24ct gold leaf..</p><p>buried at 15" 10" and 8"</p><p></p><p>2.4Mhz picked it up at 15". 4Mhz also got it... but the signal wasn't as strong.. </p><p>Which leads me to believe crystal mods sound like a good idea, but if you're talking minimal difference in signal strength, is it really worth the cost of a new machine?</p><p></p><p>I'm doing some work on my buddy Subgram's Machine, he's never short of $ (unlike me) and so doesn't worry about the cost of a replacement (wouldn't it be nice?) lol.</p></blockquote><p></p>
[QUOTE="Guest, post: 91907"] I understand the work that goes into the level 2 upgrade, even level 1.. but the price is high, too high for me, thats for sure.. Which is why I decided to give it a go myself.. Unfortunately my first attempt ended in me blowing up the regulator in my F1. easy repair but had me worried for a few minutes.. Following that, the detector slipped off my bench and ripped the front panel right off LOL.. lots of re-wiring etc.. So I guess you could say I've learned by doing.. My current frequency Mod is quite simple... I removed the old crystal, tapped the ground, added a 3 position toggle to switch between the crystals. main crystal is 4mhz, so i added a 2.4Mhz.. worked out pretty well, goes a tad deeper My test involved a 4Oz chunk of lead covered in 6 layers of 24ct gold leaf.. buried at 15" 10" and 8" 2.4Mhz picked it up at 15". 4Mhz also got it... but the signal wasn't as strong.. Which leads me to believe crystal mods sound like a good idea, but if you're talking minimal difference in signal strength, is it really worth the cost of a new machine? I'm doing some work on my buddy Subgram's Machine, he's never short of $ (unlike me) and so doesn't worry about the cost of a replacement (wouldn't it be nice?) lol. [/QUOTE]
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Metal Detectors
Minelab
MINELAB F1A4 ex military metal detectors - tips, settings, questions
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