deathray Posted October 11, 2014 Share Posted October 11, 2014 How about share the results with the specifics, here. Thanks, Ray Link to comment Share on other sites More sharing options...
tvanwho Posted October 11, 2014 Author Share Posted October 11, 2014 Ray, Keith told me to adjust the U4 trimmer pot back by the LST coil connector.Leave the other pots alone or disc will be messed up. The trim pots ALL have labels altho you might need a magnifying glass.Don't ferget to mark a reference point so you can reset U4 back to where it was originally, if needed. I got me some jewelers screwdrivers but they are metal. Where can I get a hard plastic tiny flatblade? Just concerned if I slip and the Lobo is turned on, sure don't want it to short circuit the board? I had to pull apart the white plug on the main battery connector to pull the board out of the control box and get access to U4. It may be a bit tough to adjust the pot a touch, reconnect the main battery plug, test detector, and repeat many times, we will see.... -T Link to comment Share on other sites More sharing options...
Gold Seeker Posted October 11, 2014 Share Posted October 11, 2014 Check with a good electronics or computer store or online for the plastic screwdriver, also check for ceramic screwdrivers, maybe Radio Shack? Here's a link to Amazon that have both plastic and ceramic screwdrivers/tools needed for working on electronics, if you don't see what you need, do a quick internet search for what you seek. http://www.amazon.com/s?ie=UTF8&page=1&rh=i%3Aaps%2Ck%3Aplastic%20screwdriver Link to comment Share on other sites More sharing options...
tvanwho Posted October 11, 2014 Author Share Posted October 11, 2014 Looks like it is called a Trimmer Adjustment Tool, cost under 5 bucks, will ask at Radio Shack and Best Buy. Link to comment Share on other sites More sharing options...
mschmahl Posted October 12, 2014 Share Posted October 12, 2014 Hi tvanwho! I had built an additional pot for GB in the Lobo ST, after instruction of Keith. Now the ST is a new machine. You can search deeper or individual cancel signals for hot rocks, mineralic stones and cinders from early metal production now in Disc mode. If you set the GB to wide you change the setting of Disc too and have to correct it. But all is very nice and so i could search on a field, where my Explorer SE only gets distrubances and i could only search with minimal sensitivity. I also use the 13" ultimate-coil from detech. It is deeper and hotter than the other coils. Pinpoint is just the same than a smaller coil and you find also very little pieces of metal. The drawback is you can´t groundbalance it to 100% in Allmetal with Soil switch in Normal position. You have to use alkali or blk sand. But it is no problem. You can also search in allmetal and get a sort of Irondisc by the sounds. I thing it is with all DD coils on the ST the same. Sorry for my english. Greetings from Germany. Link to comment Share on other sites More sharing options...
tvanwho Posted October 12, 2014 Author Share Posted October 12, 2014 Do you have some photos of your German GB control changes to the Lobo and how to install on the circuit board? Thanks for the update to this thread. How deep can you get an American quarter in the ground now or half dollar? Thanks -Tom Link to comment Share on other sites More sharing options...
tvanwho Posted October 12, 2014 Author Share Posted October 12, 2014 Looks like Frys Electronics is the place to go for the pot trimmer adjustment tool. I tried Bestbuy, RadioShack,and TigerDirect,none of them has the tool or even knows what it is. Over at Frys, it is called a Potentiometer Trimpot Tool, cost $1.89,part # 63-8608. Link to comment Share on other sites More sharing options...
mschmahl Posted October 12, 2014 Share Posted October 12, 2014 Here are some pictures. Caution by replacing the rimmer with a outside pot. I have destroyed a PCB-path and had to replace it with a wire (the golden around R34). I don´t have an american quarter or half dollar. But i can test with a 50 Euro-Cent pice. Link to comment Share on other sites More sharing options...
mschmahl Posted October 12, 2014 Share Posted October 12, 2014 Here is a youtube-video for 50 €-Cent test, that i have made today. It is 30 cm in trashy ground (a lot of aluminium and scrap from buildings) The photo is from the 50-Cent piece. I have forgot to film it in the video. https://www.youtube.com/watch?v=6fwcMfCTkYk&list=UUZ6eDlRhK9aGYk9bb5x2sog Link to comment Share on other sites More sharing options...
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