TESORO GOLDEN SABRE

[Magma]

Magma, Zener D12 would be inverted in your schematic. are you agree?

D12 is so set in mine diagram and mine detector.

[FOMA]

Foma.
Obyasni please, chto eto dast na praktike? Est' uvelichenie glubini obnaruzheniya bez raspada signala.[/quote]



I have done so on its detector. The Range of the regulation to sensitivity more.
But earlier were a spurious signals, which I could not take away.

If enlarge R44, maximum sensitivity will less.

[kt315]

...

[kt315]

Magma, Zener D12 would be inverted in your schematic. are you agree?

[Magma]

Modification

This is mine finally version. Work very well , one silver denar detect at 30 cm.
Best regards

[kt315]

Where what instability? No problems with stability.
It Is Changed frequency of the generator-is changed frequency in receiving winding.
No problems. No need nothing draw.

no need to draw what you change in schematic. comparators are working like to YES-NO. you have killed the sensitivity. get back the tuning.

[old_stalker]

Hi all.
So will better.

Foma.
Obyasni please, chto eto dast na praktike? Est' uvelichenie glubini obnaruzheniya bez raspada signala.

[FOMA]

Where what instability? No problems with stability.
It Is Changed frequency of the generator-is changed frequency in receiving winding.
No problems. No need nothing draw.

[kt315]

the generator is a cause of yet one unstability. still you need TO get absoliute stability in all parts of the schematic, as highter as possibly. notwithstanding you have a full right to go from Classic to 5900 di Professional, step-by-step, tearching and getting all tiny details you did not wish to take attention on at start point and later. it is only YOUR way on staircase leading you up in mind. yep you will get all these knobs... but you will be sure great guru...

[FOMA]

So bad. Golden, Eldorado, Silver has one sensor.
And generator is adjusted under frequency of the sensor.
But that is offered nonsence.

[kt315]

So I simulated the circuit and adjusted the TX oscillator amplitude to grow slowly, and at a certain value I see the "jaggies" appear just before the LF353 inputs become saturated.

simonbaker, could you to simulate up-dated one?
I hope it will good.

YOURS

[FOMA]

Hi all.
So will better.

[old_stalker]

It is connected as in ivconic

[old_stalker]

Hi ... TGS coil image . Is it treu ?

The scheme of connections of the coil and cable

http://mediapix.ru/pic.php?id=aa5e435fc8af8151116d90e13ec7f328

http://mediapix.ru/pic.php?id=9bbfe6c2be7ce7754db90fea0968e69d

[Friday]

Thank you DEMAC...