Minelab metal/Gold detector modifications SD2000 SD2100 SD2100E SD2200 SD2200V2 GP Extreme GP3000 GP3500 GPX4000 GPX4500
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SD2000 Minelab modifications
The Minelab SD2000 metal detector was responsible for creating a huge Gold rush in Australia after the previous electronic detector rushes using VLF detector technology. Minelab have released a swag of new detectors since the release of the SD2000 but none of them are capable of the depth that the SD2000 can achieve. By carrying out certain modifications the SD2000 can be made to be in my opinion the best Gold detector currently available.
Extensive testing at test sites located in central Victoria has proven many times that a moddified SD2000 can not be beaten on outright depth on Gold Nuggets. Now after many months testing out new moddifications we now have mods for the SD2100 and SD2200. We are working on mods for the other range of Minelab detectors.
We carry out various modifications on the SD series of detectors, modifications cost anywhere between $250 for the Gain Modification up to $1200 for a complete revamp of the circuit to excel on the detection of all Gold. Modifications involves the replacement of the input stage components to give far more depth and sensitivity, modification of the power stage to drive the coil with more power, time constant changes to the intergrator circuit, gain set changes to various filtering sub circuits, variable gain added to CH1 and CH2, variable ground balance depth, Audio target response mods to give a much clearer signal, transmitter component upgrades to increase depth and a low frequency modification to allow for the detection of large Gold Nuggets at extreme depth.
Have a look at the half Kilo of Nuggets found in Thailand with a Modded SD2100
http://goldprospecting.invisionplus.net/?mforum=goldprospecting&showtopic=495
Contact : vk3kcg (at) amsat.org
Woody
PS, Check out my modification videos on YouTube under Minelab or SD2000
Extensive testing at test sites located in central Victoria has proven many times that a moddified SD2000 can not be beaten on outright depth on Gold Nuggets. Now after many months testing out new moddifications we now have mods for the SD2100 and SD2200. We are working on mods for the other range of Minelab detectors.
We carry out various modifications on the SD series of detectors, modifications cost anywhere between $250 for the Gain Modification up to $1200 for a complete revamp of the circuit to excel on the detection of all Gold. Modifications involves the replacement of the input stage components to give far more depth and sensitivity, modification of the power stage to drive the coil with more power, time constant changes to the intergrator circuit, gain set changes to various filtering sub circuits, variable gain added to CH1 and CH2, variable ground balance depth, Audio target response mods to give a much clearer signal, transmitter component upgrades to increase depth and a low frequency modification to allow for the detection of large Gold Nuggets at extreme depth.
Have a look at the half Kilo of Nuggets found in Thailand with a Modded SD2100
http://goldprospecting.invisionplus.net/?mforum=goldprospecting&showtopic=495
Contact : vk3kcg (at) amsat.org
Woody
PS, Check out my modification videos on YouTube under Minelab or SD2000
