Russian pi metal detector

[roshik]

Hello to all
I have received some photos of a metal detector apparently made in Russia from someone whose name and schematic I unknow, apparently it is without discrimination and has simple circuit and has good power
Because of the use of crystal, it has very good stability.
Some of the ICs used in it are as follows:
4060,4081,555
And three Russian ic:561ИЕ8ф
Does anyone have complete information about this metal detector?

[Aleks85]

Пиздеж какой-то! Sorry, I couldn't resist, it's kind of a hybrid, it's useless without a circuit.

[roshik]

But someone used to say that this detector can detect the 30x30 cm2 metal with the coil 50 cm at a distance of two meters with excellent stability.

[kt315]

this is a clone by german PI detector, was been a proto of DBP2010.

a folder into the Archive - MET_DET\Pulse Star\Impedet

[roshik]

Hello
But I think these two are different
There are 4017, 4013, and 084 ICs in lmpedet metal detector , but Russian metal detector are three IC numbers similar 561ИЕ8, 4081,...
Of course, there is 4060 in every device, and probably the pre-amplifier IC is also the same (357).
In addition, the russian circuit uses a 4 MHz crystal, and the circuit in your case uses a crystal around 3 MHz

[kt315]

561ИЕ8 is 4017.

[roshik]

Yes, it is absolutely true
But why are three of these numbers used in the circuit?
4081 is and IC ,that does not know what it does.
If its schematic is determined, many questions will be answered.

[kt315]

But why are three of these numbers used in the circuit?

do your Home Work. at first get good HP pics at under the light. your pics you are blur and dark. i see NOTHING.
do Part List. in graphic editor put one side pic on another, changing/inverting the colours, mirrored one. you get a board pic with all connections.
it is just a work in the editor, nothing more. and never wait from a geotecher to share you something.
if you need examples of my job i can give you them.

[roshik]

Thank you Mr. kt315
Unfortunately, I only have a few photos of the electronic fiber circuit of this metal detector.
of course, I also posted two other photos of this metal detector in one of the forums, but the photos are not of high quality and do not help.
If I had high-quality photos,I would draw the schematic.

[SGS]

But someone used to say that this detector can detect the 30x30 cm2 metal with the coil 50 cm at a distance of two meters with excellent stability.

Something like this? -> https://www.youtube.com/watch?v=ZrJ8r4lanN0
The shovel at two meters