Goldscan 5b afterburner

[kanthal]

Hello to everyone. I'm a new member and this is my first post. Apparently there is an "afterburner" modification available for the Goldscan 5b. It's mentioned briefly on two Australian prospecting forums. It seems to have something to do with powering the search coil in a different manner. Could Bill or Eric explain this modification and its advantages or disadvantages? Regards, kanthal

 

[Eric Foster]

Hi,

Sorry I could not reply sooner, but got a 'flu bug which laid me low for a few days. I saw your questions also on the Poz forum. First the Afterburner - this is an add on high power transmitter which gives a useful increase in range. At this point in time there is one in Australia being field tested and a further one in the UK being tested and re-engineered to reduce the heat dissipation. Second - the GS5B detector. This has been produced now for two years and has gone through a few electronic changes between then and now. Australia is a special case because of the extreme iron mineralisation, and IMHO is is not possible to design a detector to work there to full cabability, without going through several stages of modification and adjustment, particularly when you live 12,000 miles away. I have visited Australia on two occasions to do tests and field experiments, and I have a quantity of soil and ironstone here on which I have, and still am, conducting detailed magnetic experiments. No doubt about it, the ironstone is unique and is unlike any other iron mineralised samples I have from the UK, USA, or elsewhere. At one point I had two GS5 versions. GS5B was the Australian model with 10turn GB control, and the GS5(A) was for everywhere else, and the single turn GB could also double as a discriminator. Now all the changes, major and minor, have been incorporated in a universal model that is the GS5C. The GS5C also incorporates a Li-on battery which is higher capacity and much lighter.

Hope this helps,

Eric.