Tweet
Hello everybody! This is my first post on this forum but I am a complete novice when it comes to understanding how metal detectors actually work, electronically speaking. I do know exactly how my metal detector works in the field and how to get the best from it, but I do not have the first clue how to go about making even the simplest electronic modification to it, and I have found that I now really need to.
I own an old Laser B1, which was the European version of the Tesoro Lobo, I believe. Anyway, they look very similar!
All that I need to do is this. I want to make a simple extension cable so that I can mount the control box on the back of the stem under the elbow rest instead of having it as it came from the factory ? mounted under the crook of the stem beneath the handle. I know that this means that the controls cannot be adjusted easily and that the headphone jack will be in an awkward position, but really, I detect on English ploughed fields most of the time and will run the machine on one setting almost all of the time. This would be ~ Fixed ground balance. Discrimination mode. Minimum discrimination. Maximum sensitivity.
The reason behind my thinking is this. I once used this machine over an extended period of time on long sessions and later discovered that I had damaged the joints in my elbow and shoulder. It's not that heavy, but the ergonomics of this design were indeed the culprit. Just recently I bought my wife an XP ADX150 which has the control box mounted under the elbow rest and have been testing it extensively over the last month. Regardless of the field performance of this machine (which is rather different from the Laser B1) what has struck me is just how comfortable and effective this counter-balancing of the weight of the coil is. It requires almost no effort at all to swing the coil and I have been swinging it through stubble all this time, which makes life much harder when you want to stay in close contact to the ground.
So, I dismounted the control box from the stem of the B1 and re-mounted it under the elbow rest. The difference is astonishing. This modification is now a priority for me because the old B1 (and early Tesoro in general) still remains one of the very best detectors for my style of searching, will still outclass most modern machines over ground that is laced with iron debris and will even give a good positive signal for a copper coin the size of a Georgian halfpenny (Large cent sized) placed directly on top of a piece of iron the size and shape of a Havana cigar!
I have already sourced the correct Switchcraft connectors. All that I need to know is ? which is the best cable to buy? And advice on how to go about soldering things together correctly.
Once I have done this successfully I will probably begin building myself a TGSL!
Thanks, Jeff
I own an old Laser B1, which was the European version of the Tesoro Lobo, I believe. Anyway, they look very similar!
All that I need to do is this. I want to make a simple extension cable so that I can mount the control box on the back of the stem under the elbow rest instead of having it as it came from the factory ? mounted under the crook of the stem beneath the handle. I know that this means that the controls cannot be adjusted easily and that the headphone jack will be in an awkward position, but really, I detect on English ploughed fields most of the time and will run the machine on one setting almost all of the time. This would be ~ Fixed ground balance. Discrimination mode. Minimum discrimination. Maximum sensitivity.
The reason behind my thinking is this. I once used this machine over an extended period of time on long sessions and later discovered that I had damaged the joints in my elbow and shoulder. It's not that heavy, but the ergonomics of this design were indeed the culprit. Just recently I bought my wife an XP ADX150 which has the control box mounted under the elbow rest and have been testing it extensively over the last month. Regardless of the field performance of this machine (which is rather different from the Laser B1) what has struck me is just how comfortable and effective this counter-balancing of the weight of the coil is. It requires almost no effort at all to swing the coil and I have been swinging it through stubble all this time, which makes life much harder when you want to stay in close contact to the ground.
So, I dismounted the control box from the stem of the B1 and re-mounted it under the elbow rest. The difference is astonishing. This modification is now a priority for me because the old B1 (and early Tesoro in general) still remains one of the very best detectors for my style of searching, will still outclass most modern machines over ground that is laced with iron debris and will even give a good positive signal for a copper coin the size of a Georgian halfpenny (Large cent sized) placed directly on top of a piece of iron the size and shape of a Havana cigar!
I have already sourced the correct Switchcraft connectors. All that I need to know is ? which is the best cable to buy? And advice on how to go about soldering things together correctly.
Once I have done this successfully I will probably begin building myself a TGSL!
Thanks, Jeff
Comment