Stop building PI detectors!

[pustareka]

https://web.archive.org/web/20170531.../universal.htm



Main technical characteristics
Maximum depth of object detection (by air):
Coin diameter 25mm to 36cm
Helmet up to 1.5m
Maximum depth up to 3m
Indication:
Visual graphic and text, LCD 122x32 dots
Sound multitonal
The search mode is selective, non-selective, PULSE
Operating frequency range 4-12 kHz(IB), 400 Hz(PI)
Supported sensors are non-resonant (multi-frequency),
resonant (single-frequency),
pulsed (single-coil)
Supply voltage 3.7-6.0 V
Current consumption up to 200mA (IB mode),
up to 500mA (PI mode),
up to +100mA with LCD backlight
Sensor parameters ring resonant 200mm (IB), loop depth 1.2m x 1.2m (PI);
Rod length adjustable (800-1400mm);
Weight, no more: 2.0 kg;

[aft_72005]

hi amigo
yup, site had been closed... DJE gave you right link. i did not know about it,,, thank you both.
anyway... i did keep much files in the Archive, Kolokolov and Schedrin, and you can find them easily.

Hi amigo KT315
Thank you
I am interesting to build PI/ VLF machine .studying voodoo project but unfortunately there isn't that book in my country . ... other thing where is found your Kolokolov and Schedrin archive ?
Regards .

[aft_72005]

http://metdet.com.ua/universal.htm

Thank you .

[kt315]

Hi amigo KT315
Thank you
I am interesting to build PI/ VLF machine .studying voodoo project but unfortunately there isn't that book in my country . ... other thing where is found your Kolokolov and Schedrin archive ?
Regards .

you have to know i do not make u-controllers' with color LCD projects. all my projects are intended on lowest layers of the people, poorest folks, the peasants, 'small people'.
all my schematics are based on 'trash technology', their components you take from oldest PCBs you can find in landfills and trash cans around you, in your local terrain.
so all projects with the chips - thats not directed to me. ask The English Gurus of the forum. BTW i do not see someone here who got result with VOODOO circuit.

link on The archive https://drive.google.com/file/d/1pNU...usp=drive_link

[aft_72005]

you have to know i do not make u-controllers' with color LCD projects. all my projects are intended on lowest layers of the people, poorest folks, the peasants, 'small people'.
all my schematics are based on 'trash technology', their components you take from oldest PCBs you can find in landfills and trash cans around you, in your local terrain.
so all projects with the chips - thats not directed to me. ask The English Gurus of the forum. BTW i do not see someone here who got result with VOODOO circuit.

link on The archive https://drive.google.com/file/d/1pNU...usp=drive_link

yes ... one of the important notice .. is be available electronics component .
in my opinion your doing good work .
about VLF/IB with ordinary components I see in forum two circuits one by iviconic and second by other person .
but It is not clear whether they actually work or not.

[aft_72005]

see this circuit I found it in internet , but I don't know is there are more about it.

[aft_72005]

this