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.

In other areas the 8″ coil will give greater accuracy while still achieving outstanding ranges. Steve Herschbach Reply Quote. May 28, Eric, The minute you build a ground balancing version of the Goldquest I will buy one Please put it in a waterproof case TerryinHawaii Date: Can the goldscan IV be optimised to the same degree of sensitivity as the goldquest SS?

The battery unit is connected to the main electronics via a coiled extension lead.

One can truly appreciate Eric’s intellect when they fully examine on a technical level, this PI and the features it had. To Order outside Australia.

In clear uncluttered areas the 11 ” coil can be used on the beach to achieve maximum depth performance. I always run my GP Extreme and Infinium in “fixed” mode anyway.

Pulse Technology Goldscan 4

Unwittingly opened the door for Minelab. Please put it in a waterproof case Lv Date: Thanks for the info! There are areas over here in Hawaii that have a lot of hot rocks. 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.

The unknown model before the GS5.

REG GoldScan Model 4 1/2

Loops and probe are fully water proof and can be submerged. Any suggestions on amalgamating the above units and the ground track circuit would be illuminating!!

He removed high voltage hum from existing audio. It goes with saying that as with this forum you have setup and as engineer, you have helped people in allowing your older models to be upgraded and having responded to these upgrades yourself by improving the GoldQuest and the GS.

Technology Forum

May 21, The bottom 9″ of the lower shaft is of rigid plastic material to avoid excessive signal levels due to the proximity of shaft and loop. Terry in Hawaii Reply Quote.

Hope the GS5 is a big hit!!! A Li-Ion battery yoldscan replaced the old heavy, separate battery box and power cord and a pigtail with headphone connector.

Both loop sizes incorporate a double electrostatic shield to eliminate capacitive effects on a wet beach. Didn’t older PI’s have GB?

Is there a ground tracker circuit schematic available somewhere that can be utilised on the goldscan IV design?? I finally got smart and ground balance over a hot rock.

Sorry, only registered users may post in this forum. May 10, Since the board has been slow lately, here lv something to look at! It will separate Iron and gopdscan. There seem to be few situations where you really need automatic ground balancing in a PI unit, and it usually golvscan a tad on sensitivity. After digging these up for over an hour.

The headphones plug into a jack socket on the battery box and a unique sensing circuit cuts out the speaker in the main electronics when the plug is inserted. This is a project that I started and ending up sending to Reg for his help.