Allodium,Interesting. There are three possibilities.1) It is not needed and can be omitted.2) It is needed and there is a mistake on the circuit. i’m sorryi dont underestand english goodi try speak to you1. can i use instrumentation Amp Amplifier Instead Of UA 2. the piezo is not work3. does any one made complete goldscan IV PI metal detector?is it stable?what about the depth?what about the operating frequency?what about.

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It about as light as your typical Tesoro. Hi Steve As far as I know this http: May 22, Switch over to the Probe to quickly locate a find in a dug hole or to probe between rocks and large stones. However, even with the mentioned changes, the original GS still will not compare to the new GS 5. Hi Eric, I want one to but in a waterproof case. Shaft mounted electronics plus 11″ search loop 3.

Pulse Technology Goldscan 4

Thanks for clearing that up for me Terry as i had visions of a real prospecting goldscwn forming in the greymatter and who would prospect in a desert when when beautiful islands beckon lol. Any suggestions on amalgamating the above units and the ground track circuit would be illuminating!! I would like to have your help to make my prototype and If you need some thing please contact me. This is sufficient for the detector to be placed on the ground while the user is standing upright and digging with a full size spade As the phones plug into the battery box these do not have to be removed while digging.


REG GoldScan Model 4 1/2

Hi Beach Bum, Right you are Hi Dom, Congratulation for your work with Goldsan 4. In clear uncluttered areas the 11 ” coil can be used on goldecan beach to achieve maximum depth performance.

Please put it in a waterproof case TerryinHawaii Date: Sorry, only registered users may post in this forum. An obvious suggestion perhaps, but with the connection of the above technologies together and then fitted with a Minelab coil connector, we would have the benefits of using Coilteks range of discs Heck, I’d even help finance the project! I’ll buy one – right now! The battery pack can be replaced easily by the user.

Technology Forum

Despite what many manufacturers claim PI units ARE affected by ground conditions, and so ground balancing capability if desirable for best perormance in a gold nugget detector.

Eric is truly a rare person in this respect.

I think judging by the number of interested Aussies on this forum, there are quite a few of us that refuse to pay Minelab’s exhorbitant prices. Pity I didn’t continue developing it as a nugget hunter earlier on. To re charge using the mains charger requires 12 – 14 hours.


If the ground is strongly iron mineralised the Ground CANcelling facility can be brought into play while areas contaminated with much metallic iron can benefit from the use of the SELect 1 switch position.

Didn’t older PI’s have GB? He removed high voltage hum from existing godlscan. Salt water does not affect performance so the Ground CANcelling facility is not required.

There seem to be few situations where you really need automatic ground balancing in a PI unit, and it usually sacrifices a tad on sensitivity. Both loop sizes incorporate a double electrostatic shield to eliminate capacitive effects on a wet beach. Eric, The minute you build lv ground balancing version of the Goldquest I will buy one He goldscaan helped untold people worldwide to learn, how to modify and to modify himself and answers untold e-mails.

The GS has variable Pulse Delay.

Much iron can be eliminated by judicious use of the DISC. Cheers Tony Reply Quote. May 23, goldecan So, between the two, they have made this one of the truly great forums.