-
Posts
20,046 -
Joined
Content Type
Forums
Detector Prospector Home
Detector Database
Downloads
Everything posted by Steve Herschbach
-
Gold Pan History?
Steve Herschbach replied to tvanwho's topic in Gold Panning, Sluicing, Dredging, Drywashing, Etc
Pans and sluices are recorded back as far as we have history on the subject, and yes the Romans used pans and sluices. The Golden Fleece is thought to possibly have been a sheep’s hide used to line and capture gold in a sluice box. From De Re Metallica, by Georgius Agricola, First Latin edition 1556, picture of gold pan and sluice box in use. Not any different than early scenes in California 300 years later. Interestingly the first English translation was by Herbert Hoover, who later went on to be President of the United States. It also is one of the first written accounts to describe dowsing. It is also interesting that one of the first things discussed in the book are the environmental impacts of mining. Things we think are new to our times have been discussed for centuries if not millennia. The translated text is below but for as easy overview skip to the Wikipedia article at bottom. http://www.gutenberg.org/files/38015/38015-h/38015-h.htm Wikipedia - about De Re Metallica -
For the small people in your life! One of the few detectors I have seen that is designed for kids without being an insult to kids intelligence. And waterproof - amazing!
-
Telescoping Vs Folding Shafts
Steve Herschbach replied to relicmeister's topic in Minelab Equinox Forum
It is not the telescoping or folding rods. A two piece carbon rod would do that the best. A single piece would in theory be better yet but most of us want adjustable length and at least minimum breakdown capability. -
New Impulse Video
Steve Herschbach replied to Lance's topic in First Texas - Bounty Hunter, Fisher & Teknetics
I have read posts by Alexandre stating the Impulse is locked permanently in “salt mode” even in all metal mode, and that there should be no expectation it will detect tiny gold items. In fact it is by design excluding small aluminum in order to focus of gold rings to the exclusion of almost anything else. This implies an insensitivity to saltwater that should be in favor of stable operation at depth. You can’t really complain the detector will not pick up small gold items then turn around and get overly concerned it might be too sensitive to saltwater. It’s one or the other, and the machine is stated to be insensitive to saltwater, small aluminum and small gold by design. In any case this is the reason why we have a pulse delay control and a sensitivity control so it seems to me like concerns over saltwater stability is a blown up issue. It’s not like the machine is preset with no adjustments available. -
There have been various posts already that explain that the Impulse AQ is locked in “salt mode” and by design is not set to pick up the smallest gold i.e. aluminum even while in all metal mode. The Impulse is designed to pick up gold rings specifically and particularly the “sweet zone” where the most gold by weight occurs while excluding everything else.
-
To my knowledge there are no dealers or service in the U.S. and AKA has expressed little interest in establishing any. Maybe Sergey can give us some clarification on that but to the best of my knowledge the answer is no. Beware that according to this thread there is a person in the U.S. posing as an authorized dealer who is not. I have no knowledge of that one way or the other, just passing it on as a caution.
-
New Impulse Video
Steve Herschbach replied to Lance's topic in First Texas - Bounty Hunter, Fisher & Teknetics
Dew..... if you are implying I don’t have experience at this you are mistaken. I am a scuba diver with dry suit, night, zero visibility, ice diving, and instructor ratings. I’m fairly proficient at breath hold work and have recovered a lot of jewelry while doing so. I have been water detecting for 40 years; started in Alaska as a freshwater lake diver and graduated to saltwater 20 years ago. I have done so in zero visibility conditions as well as in heavy surf using 40 plus lbs of lead weight. Water so rough that simply staying on the target with 40 lbs takes great effort. I have been knocked off my feet plenty of times. Chest deep? I often work to tip-toe depth using mask and snorkel and breath dive to recover targets in water that deep. If chest deep I am often in surf so heavy I can’t see the bottom. I almost never use a scoop in those conditions as I have to recover targets by hugging the bottom to stay under the waves. I then recover the targets by hand, digging and fanning. I have plenty of time on scoops though, often in zero visibility conditions. Suffice it to say I have had a hell of a time recovering some targets! In retrospect probably at more risk to life and limb than was really warranted... but I lived to tell the tale. My first water machine was a 1280X when they were new to the market. Main water machines have been the 1280X, Surf PI in various versions, Garrett Infinium, ATX, and CTX 3030 plus minor use of CZ-20 and Excalibur. I am quite familiar with what a DD coil is and how to use one. The Infinium had a 14” DD stock and I have probably got close to 100 hours running the CTX 17” coil in the water. So I’ll repeat. From my perspective a 12.5” mono is not all that large so I’m not too worried about it. The 8” mono will be a piece of cake. Geared up for surf with Garrett Infinium - note dual weight belts (not recommended, dangerous) My scoops - heavy duty stainless on left my favorite by far Infinium finds from one Hawaii trip Two weeks in Hawaii with ATX - 28 rings, 11 of which are gold or platinum, gold bracelet Closer view of better finds from trip above -
General Metal Detector Type Question(s)
Steve Herschbach replied to nopeda's topic in Metal Detector Advice & Comparisons
Actually thought about dip needles not too long ago. I think they would trace black sand in surface washes as well as most metal detectors. -
You are digging the right kind of targets.... sooner or later it has to happen!
-
Welcome to the forum Sergey. There is no specific area for AKA since it is fairly rare here in the U.S. There are threads about it however on the Metal Detector Advice & Comparisons Forum which is a general purpose forum. AKA Intronik Thread AKA Signum Thread
-
Ok, just checking as iron bias would have an effect on that.
-
Had this article forwarded to me. Funny how the guy wanted to brag up how much his detector cost. I know there is an exchange rate and all but still..... https://www.stuff.co.nz/waikato-times/news/118580213/matt-hastings--a-treasure-hunter-at-whangamat-beach
-
What is your iron bias setting?
-
The reason I ask is some PI detectors like the TDI are not regulated and so people try and get more depth by applying more power.... at the risk of electronic failure of course. I like that using an external power pack makes battery alternatives very easy. I am sure there will be a larger battery option, perhaps belt mounted, for those who want longer operating times between charges. And of course Li-Ion as an option. Interesting to hear that other battery configurations are possibly planned in the future. No doubt to be used in conjunction with other future models still under development.
-
I suspect then that you might be surprised when you actually get to see a refined version of Multi-IQ instead of what we have now. But you are right, none of this is technically new, including Tarsacci. Time domain processing applied to frequency domain detectors, so-called hybrids, started with Minelab BBS detectors, if not before. I also agree price percentage analysis makes no sense. Gold prospectors will pay thousands of dollars for just one more inch of depth. You have to consider that extra inch might get a one pound nugget. Or in the case of Tarsacci a large diamond and emerald encrusted platinum ring.
-
New Impulse Video
Steve Herschbach replied to Lance's topic in First Texas - Bounty Hunter, Fisher & Teknetics
I have never had an issue pinpointing non-ferrous targets with a large mono coil, even my 18” mono on my GPX. They detect in the center unless extremely shallow - then under each edge (double blip). It’s long ferrous targets that kill me. They act like magnets, signal off each end, and one end almost always predominates. This creates an apparent “ghost signal” off one end of the target, in my case usually a large nail. In practice this often means a nail directly under one edge of the coil. There are many times I dug a sweet signal only to finally think “this hole is too deep” and when examining the sidewalls with a pinpointer pulled a nail out I’d gone past by a foot. That is while nugget detecting on dry land. Long ferrous in the water and a larger mono coil could be a disaster. From my perspective however a 12.5” mono is not all that large so I’m not too worried about it. The 8” mono will be a piece of cake. -
It seems requirements around shipping or flying with Lithium Ion batteries are increasing. Either intentionally or by mistake. See this post: “Hi forum, I’m desperately looking for a good condition LI battery full size for my GPX 5000. I travelled half way across the world to do some winter detecting Arizona way and my airline refused my battery at check in; both hold and carry on were not permitted. Any one got a battery for sale this would help me out massively. Don't want to buy a new one as I’m only here for a month and can re-unite with mine back home.” Fisher Research was originally designing the new Fisher Impulse AQ with a Li-Ion battery pack but recently switched to NiMH instead for the external battery pack. It may be this decision was prompted by issues like this. It does not bode well for those traveling with large batteries in particular. On my trip to England my having a large Anker USB charger pack in my carry-on got me shunted into a separate full security check. There is a lot more scrutiny on international flights. Just a heads up for anyone traveling with a GPX detector. Integrated batteries like on a Equinox should pose no issues.
-
Coil 7.5” For TDI - Something Added To Cable?
Steve Herschbach replied to Luis's topic in White's Metal Detectors
Same answer regardless of where you bought it. It could have been to try and comply with local regulations regarding EMI emissions. -
Posted previously along with review by person who did the video.
-
Coil 7.5” For TDI - Something Added To Cable?
Steve Herschbach replied to Luis's topic in White's Metal Detectors
Somebody has shrink wrapped a ferrite core over the cable. Some people think this improves coil performance. Probably not but it won’t hurt anything.