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GeoBill

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About GeoBill

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    Contributor

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  • Gender
    Male
  • Location:
    SF Bayarrhea
  • Interests:
    Hiking, sourdough, beekeeping, finding gold.
  • Gear Used:
    Old MXT, Old V-SAT, Old ML Sovereign XS-2 Pro, looking for a PI detector.

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  1. Here is Reg explaining how changing the ground balance can enhance the identification of coins https://www.tapatalk.com/groups/whitesgoldmaster/my-tdi-or-sl-chart-again-t865.html and I believe that this is Reg demonstrating the process
  2. Steve has an article here on using the TDI for coins, I think based on Reg's work. There is also a video on Youtube by I think Reg also showing this. I will look for the video and Reg's writeup and add to this.
  3. If you're looking to unload the parts I might be interested. Thanks Bill
  4. I'm assuming Beach Hunter ID model. About 10 years old I'd guess. Here's link to reviews referring to issues with coil float. For $100 would probably be a good deal. http://metaldetectorreviews.net/detectors/12-1-beachhunterid.html
  5. After a rather long hiatus (knee replacement) I finally was getting out to do a little detecting this weekend and found that my pinpointer had decided to go on a walkabout. Over the past few months I’ve directed several forum members to opportunities to purchase a TRX and now I needed to find one for me. Not an easy task. There is a used one on Ebay right now with bid already over $200 with five days yet to go….. OK, to the point of this post. Searching around I did stumble across a site selling TRX’s for $55 ea for a lot of 10 pieces, with about $150 for shipping (~$70 ea). Normally I wo
  6. Here's another USGS pub on the northern gravels Gold-bearing gravel of the ancestral Yuba River, Sierra Nevada, California https://pubs.er.usgs.gov/publication/pp772
  7. This is a GIS based map of the "hydraulic mine pits of california" - has many unnamed small occurrences: Some you probably never knew was there. https://www.sciencebase.gov/catalog/item/571976c2e4b071321fe22947 You can use different base maps. When I left the USGS in 1995 I was at the time working with Warren Yeend on expanding the Tertiary Gravel study beyond Nevada County. One of the big unanswered questions is the primary source of the gold in the Tertiary Gravels? There have been proposals that there was a similar suture system to the current Mother Lode to the east that has
  8. https://www.centrevilleelectronics.net/parts.htm frequently has the battery holders in stock (currently "Temp" out of stock), and https://centrevilleelectronicsnw.com/shop (northwest) has them in his store for $19.95. What they say about a fool and his money! There does appear to be a run or hoarding of Whites though. Before Christmas there were many of the TDI-SL both new and used on E-Bay, CraigsList - now nothing for quite awhile. On one of the Australian boards there has been discussion about how difficult it is now to find any used Whites detectors over there. Maybe they're beco
  9. Thanks Karelian. No worries. I actually bit the bullet and sent it in for repair. Hoping that it can be fixed as the few minutes I got to play with it were quite fun. I first took it to a local park to try Reg's coin settings and the first three targets were dimes at 6-8 inches. WooHoo! Then it was pulltabs, nails, assorted junk, all sounding exactly like the dimes. Took it home and tested in the yard to find the GB issues. Really appreciated the light weight and balance. Appreciated all of your posts about the SL - hoping to try your battery setup. Great posts on coil comparisons! B
  10. I recall that there were several people here who were looking for the TRX pinpointer and not finding them in stock anywhere. I was just looking at the Centreville Electronics website and they have them listed in stock for $199 with 2 year warranty. I was able to add one to my cart so it appears real. https://www.centrevilleelectronics.net/newunits.htm Cheers
  11. I recall that recently there were several posts here from people looking for the TRX but not finding any. I was just looking at the Centreville Electronics website and they list them in stock for $199 with 2 year warranty - https://www.centrevilleelectronics.net/newunits.htm Cheers
  12. Gary does make great stuff! That's probably my most frequently non-returned loaner item. Buy them 2 at a time because they're frequently sold out (OK, I admit I have been known to lose them myself). I also really like the Huntley Spoon he makes. Check his online store: Honans Mining Supply
  13. Hi Karelian; Did you end up trying adjusting the pot to see if it helped? I just bought a used TSI SL (ebay - less than year old - included receipt) that sounds like it has very similar problem. Won't ground balance. All tones high with GB off, all tones low with GB on with no variation with change in GB setting. Interestingly with GB off a US quarter does not register, but with GB on does. With GB on, putting the conductivity switch to low coins, nails, pull tabs, all are quiet. Switching to high all produce a low tone (including now the quarter). Same with several coils. I welcome
  14. I've been away from detecting for a long time so I'm not really up to speed on the different technologies the various companies own. I'm more familiar with the biotech/hitech world where companies are bought solely for their intellectual property. Did White's have patents that Garrett would want/need to move their products forward? Steve, you bring up the 24K. I see a lot of discussion/praise for the GM1000. Do you think Garrett would bring it back to compete in that space? Is it superior enough to the AT Gold that they would want to repackage under their own name? I'm pretty happy w
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