Real clone Alonso-PD

[DrTech]

Originally Posted by ANDREAS

Last year i have a mail by seden if is possible drawing a PD only for gold.
This is a point very interest for me and ofcourse i try find solution for this.
For experiments i use my real clone alonsoPD with full modifications (for example change MD section with other circuit stability), build a new sensor via lathe and laser cutter.
After two months study and build many-many prototypes sensors, i think find solution. The big problem again is calibration all together. In this case i use other way for find delicate for all work together.
Joke !!! i know very well what i need for calibration and all steps for fine tune, but in practice after three days without results, i find solution (very difficult)

Please look video https://www.youtube.com/watch?v=1alv...ature=youtu.be
This is not dream, but real. No ground or sky effects. No detections earth lines
The unit is very-very stability and silence for other metals.
Interest is PD work without motion or very-very slow motion
enjoy

Congratulations Andreas for your project, the new modification is in the RX or TX, I'm working with a LED transmitter but has not given me good results, such as a magnet detects 30cm.