two box detector

[Georgi]

I am working on MD called "Tresure Witcher"
with IC ca3035 . I used Kt315(my local analog
2T3511) for the receiver,but it doesnt work.
If anybody knows that circuit we could xchange
Xp.10q

[Chris]

Re: two box detector

Hi Georgi

try the Deep-Seeking Metal Locator. This circuit looks much more professional than the Tresure Witcher. The project documents are at Geotech available (see link).

Chris



Deep-Seeking Metal Locator