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A worldwide collaborative design group for the purpose of developing commercial detectors. Please drop in and see what we are doing!

General tech discussions on all types of metal detectors: VLF, PI, 2-box, BFO, off-resonance, PLL, etc. Questions, ideas, and anything else that moves you.

Same as the Tech forum, but coil-specific.

Detector mods, plus any other useful add-ons.

If you have a schematic to share, post it here. Please read the Intro post for rules on posting schematics.

Tech discussions on mags.

Tech discussions on sonar, transducers, and towfish construction.

Other geophysics techniques, including earth resistivity, GPR, infrared, induced polarization, etc.

Tech discussions on remote sensing techniques. Confirmed registration required for posting, please read the Intro post.

Vacuum forming, coil winding, packaging... anything mechanical.

Cool circuits, tips, techniques, PCB methods, test equipment, etc.

An induction-balanced PI design originated by Tinkerer and open for community development.

The goal of this forum is to produce a workable GPR design that can be home-built.

A basic PI design with all parameters variable, intended as a learning platform for pulse induction.

A basic PI design incorporating a PIC micro for timing control, intended as a learning platform for using uC's.

An advanced and scalable PI design using a PIC micro for timing control and signal processing.

JL King's microcontroller-based PI design with LCD readout & USB interface

For those building Tesoro circuitry

A microcontroller-based PI design in active development

General info on how to use PIC-USB, and how to incorporate USB into your detector design.

Detectors, parts, electronics, and so forth. No dealer restrictions.

Buy-Sell-Trade-Discussion specifically for treasure mags, books, & other publications.

Pics & info on vintage detectors, for those who like "the good ol' days" of digging everything.

Those who have products & services they would like to advertise may do so here. Please read the Intro post.

A forum for everything else. Detector & non-detector posts are fine. No adverts, no cussin', no spittin'.

at Findmall.com

Carl Martahus' forum, discussions on Discovery detectors plus other tech issues.

Tech forums dealing with the various Pulsdetektor projects. German only, Click Here for a BabelFish English translation.

Lots of technical forums, but all in Russian. Click Here for a BabelFish English translation.

THunting.com is the former host for Geotech. These are the general Treasure Hunting forums.