GoldScan-6

[hunter63]

Hello I am resuming the topic of GoldScan, as I promised, I am posting a freshly developed diagram.

[Altra]

Hello I am resuming the topic of GoldScan, as I promised, I am posting a freshly developed diagram.

You might want to consider a different power supply configuration. The AM10CW-2405D-NZ are very expensive and appear hard to find. Maybe there is an alternative brand?

https://www.findchips.com/search/AM10CW-2405D-NZ

[hunter63]

Hello
They are not very expensive, around 16E, you can easily buy them at TME.EU
You can use a lower power one, much cheaper, but I used it with reserve. Do you have a BT.Test diagram?

[Altra]

What is a BT.Test diagram?

[hunter63]

Hello Altra
Battery Health Test Regards

[Altra]

Okay, no I don't have any battery test diagrams. They can be tricky and depend on the battery type being used.

[hunter63]

For power supply, I plan to use PowerBank 20000mA/12V

[hunter63]

They are not difficult, usually on two transistors, three LEDs, a zener diode and that's it

[Detectorist#1]

Hi hunter63,

My comments: With the first delay of 10-20us forget about small objects. This project is like wearing a boxing glove to swat flies - but without success! Too many expensive parts for very disappointing results.

[Detectorist#1]

Also using of ADA4610 as input RX stage with 30nV voltage noise at 2Hz will reduce drastically the distance of recognizing of the targets.

[Xtrem]

without being sure, I think the resistances should be reversed.
R99<>R95 R100<>R96
Nice work ....hunter63

[Detectorist#1]

Hi Xtrem,
You are right - the values of R99-R95 and R100-R96 have to exchanged. Also Q9 and Q10 have to be connected in reverse - emitters and collectors have to be exchanged!

[hunter63]

The diagram provided is a prototype and the audio has been completely changed. Now I'm busy with field service, I'll post the corrected errors in the evening, thanks for the analysis, best regards

[hunter63]

Hello
I am sending upgraded audio

[hunter63]

Which version of GoldScan did you build, version 5 is based on Whites TDI, I saw this detector at a rally and I disagree that it has a poor range, there are videos with Goldscan 5 on YouTube, the ranges are reasonable