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Search results

  1. J

    Latest TDI SL mod..

    Jess, they're gear reduction controls. They turn 6 turns for every turn of the detector control. You have to mount them on a fixed base so the bodies don't rotate. They are fastened to the detector controls by a set screw. I machine the bases from a solid block of aluminum, and fasten the...
  2. J

    BEAUTIFUL Buffalo Nickel!

    That's a dandy! Nice find! Jim
  3. J

    Latest TDI SL mod..

    I've always had trouble getting the GB and Threshold exactly right on my TDI SL. After seeing Karelian's thread on the vernier knob, I decided to see what I could come up with. The problem with the control the guy suggested to him was that it had limited movement. Ideally, you want the vernier...
  4. J

    Found My First Gold Coin!!

    What an incredible find! Congrats! Jim
  5. J

    Whites TDI

    Yes....LOL, but I've never found any gold. No detectable gold in my part of Idaho....just flour gold in the river. But I enjoy the outdoors, and don't mind bucking the odds as I keep prospecting in my part of Idaho. Jim
  6. J

    So after 53 years, we meet up

    Another stellar day! I'm jealous...LOL Jim
  7. J

    I actually took 2 steps away before going back to dig

    I'd call that a really great day! Jim
  8. J

    Deep Morgan Silver Dollar! and other finds from last 2 weekends

    Wow, Dave, you are killing it! What a pile of finds! Jim
  9. J

    Whites TDI

    I have an adjustable output charger....basically, a buck converter. I generally set the voltage at 16, or 4.0 volts/cell. The SL tolerates that fine. I have gone as high as 16.8 which is the standard max charge voltage for a 4-cell li-ion pack, with no problems for the detector. Carl Moreland...
  10. J

    Whites TDI

    I've used a 4-cell Li-ion battery pack for years. No problems. Jim
  11. J

    1st MERC DIME at the depresion shack

    Incredible condition! really nice find. Good job of detecting. Jim
  12. J

    I've Finished Up All My aa Battery Test, and the Results Are In!, 'The Good' 'The Bad' and 'The Average'

    I'm really surprised the ATX is only 185ma. The Whites TDI SL is close to 500ma. Both are PI's, and similar in performance. Jim
  13. J

    12" DF coil for Whites TDI

    Good shape...little use, no cover. $125.00 shipped CONUS Jim
  14. J

    Video on TDI SL battery voltage effect on coils

    Finally got to work on testing the 7 1/2DF, 8x6 Sadie, MJ 8x12, and 12"DF. Did a comparison on the 7 1/2DF and Sadie with both battery packs, and a comparison of the MJ 8x12 FM, and the Whites 12"DF at 16v. Voltage effect on coils Sorry guys, I noticed after watching the whole thing that...
  15. J

    White's GMT...one owner.

    I have my GMT for sale. Good condition. $400 + shipping with one DD 6 x 10 coil. For an additional $50, I'll throw in a 6 x 10 Concentric coil off one of the older Goldmasters. These concentrics are super-sensitive on the GMT, though you may not be able to use it in heavily mineralized ground...
  16. J

    TDI SL mods and tests

    I did both of Reg Sniff's suggested mods to my 2013 model TDI SL. I also use a 16v battery pack. I was testing it yesterday on pieces of nickel. I buried a 1 gram piece at 6", and a 1.84 gram piece at 10". The TDI saw both with the 7.5"DF coil, and the 8 x6 NF Sadie coil. The 12"DF coil could...
  17. J

    WTT a GMT for a TM808

    Have a nice GMT I've owned since new. Want to trade it for a TM808. Jim
  18. J

    WTB Miner John 8 x 12 folded Mono coil for TDI

    Thanks, Jim
  19. J

    Did the TDI SL sweep speed mod today

    Bit the bullet and did the sweep speed mod this morning. Made a huge difference in the acceptable SS. I ran the 1 grain gold bar past the 8 x 6 Sadie coil before doing the mod, and there was a relatively slow, specific sweep speed that gave the best signal. Too fast, and the signal completely...
  20. J

    WTB Falcon MD-20

    Make me a deal I can't refuse, and I'll buy it. Jim
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