"OLD FORGOTTEN METAL DETECTOR'S"

[chopz54]

Hi Chopz54,

Will you fill in the values of the components.
And will you have a special look in the yellow marks,confuse me.

Grt Nakky

I dont have time to do that many I meant just a few key parts.

[nakky]

Hi Chopz54,

Will you fill in the values of the components.
And will you have a special look in the yellow marks,confuse me.

Grt Nakky

[chopz54]

Hello Everyone . I can not figure out which model this is cloned from ? I thought this Red-Heat ran @ 17 khz and was made around 1994 ? Maybe why the Red-Heat is painted with permanent ink marker , try to use Cutex "Acetone" to clean components then we will know secrets .

Trace on PCB could be cut for isolated ground for shield on a center tapped search-coil ?

Regards................Eugene

Machine is dated inside 10 june 1993.
Let me know which components ID's you would like-showing them in one of my original photos.

[ivconic]

Hi Ivconic,

I think,I have tree little points, marked in blue.

Grt Nakky

Yes, that's true!
Good job Nakky!
Cheers!

[ivconic]

Hello Ivica,

Great.... now you are the fastest man on earth

More serious.. have you seen the ground track break on top 2n2907.... Tesoro had always a closed ground track around the pcb's... Vic had also had made a cut in the ground track...?? is there some need for ??

Agree it is Tesoro family !

Best regards.

Ap

I think it is done to void eventual ground loop.
Although, on most of my pcb's i put continued ground "frame" and usually i don't have loop issues.
Might be Vic experienced some problems with "frame" and later decided to cut small piece and brake it.

[amtech2005]

Hello Everyone . I can not figure out which model this is cloned from ? I thought this Red-Heat ran @ 17 khz and was made around 1994 ? Maybe why the Red-Heat is painted with permanent ink marker , try to use Cutex "Acetone" to clean components then we will know secrets .

Trace on PCB could be cut for isolated ground for shield on a center tapped search-coil ?

Regards................Eugene

[nakky]

Hi Ivconic,

I think,I have tree little points, marked in blue.

Grt Nakky

[ApBerg]

This should be preliminary sketch.
Now it is needed to check it.
There are several spots on pcb about which i am not sure, due unclear photo.
Most probably i made some mistakes.
Actually this is manually draw pcb! Ahahahah! I used to work like that in the past too.
Also, most probably author made some smaller mods on it.
I see some "tuning" added extra.
I put some components values about which there should be no doubts.
Rest i can do later when checking is done. Maybe bit better photo will help too.
There is to strong light pointed to pcb, making some shades and shines which disturbing me to see clearly.
It is obvious that this is Tesoro design, no doubts in that.
Could be earlier version of Bandido or similar.

Hello Ivica,

Great.... now you are the fastest man on earth

More serious.. have you seen the ground track break on top 2n2907.... Tesoro had always a closed ground track around the pcb's... Vic had also had made a cut in the ground track...?? is there some need for ??

Agree it is Tesoro family !

Best regards.

Ap

[WM6]

Amazing work!

He has special NASA reversing software.

[simonbaker]

This should be preliminary sketch.
Now it is needed to check it.
There are several spots on pcb about which i am not sure, due unclear photo.
Most probably i made some mistakes.
Actually this is manually draw pcb! Ahahahah! I used to work like that in the past too.
Also, most probably author made some smaller mods on it.
I see some "tuning" added extra.
I put some components values about which there should be no doubts.
Rest i can do later when checking is done. Maybe bit better photo will help too.
There is to strong light pointed to pcb, making some shades and shines which disturbing me to see clearly.
It is obvious that this is Tesoro design, no doubts in that.
Could be earlier version of Bandido or similar.

Amazing work!

[ivconic]

This should be preliminary sketch.
Now it is needed to check it.
There are several spots on pcb about which i am not sure, due unclear photo.
Most probably i made some mistakes.
Actually this is manually draw pcb! Ahahahah! I used to work like that in the past too.
Also, most probably author made some smaller mods on it.
I see some "tuning" added extra.
I put some components values about which there should be no doubts.
Rest i can do later when checking is done. Maybe bit better photo will help too.
There is to strong light pointed to pcb, making some shades and shines which disturbing me to see clearly.
It is obvious that this is Tesoro design, no doubts in that.
Could be earlier version of Bandido or similar.

[chopz54]

Thats VERY good Qiaozhi

If you need any printed info (which is visible) off any components, I will have a look for you,which should save you some time.

[chopz54]

Instead of making photos, try to put PCB on scanner, you will get much better hi-res picture without problems whit alignment, light etc.

That would have been ok if the board was OUT of the box, but as you can see from my

photos about 20% of it is still tight in the control box + add the plastic edgeing on most

scanners and all you would have seen was about 1/2 of the board........

[Qiaozhi]

OK - try this ->

[Qiaozhi]

Instead of making photos, try to put PCB on scanner, you will get much better hi-res picture without problems whit alignment, light etc.

That's the problem. He cannot remove the PCB from the enclosure without unsoldering all the wires.