TGSL prints

[ripsdevala]

Already do that, nothing happens with 12v power bank, let me try using battery's, i dont know if this can use 18v, but all my electrolict caps is 16v
I see... that's why I burn twice my barracuda with laptop adaptor and CPU power supply.

[CDI]

Did I do wrong? Now no sound at all
Using 9v DC adapter
https://youtu.be/-7gX0d5ernI

9V adapter? Are u kiding me? u need minimum 11 volts to power unit. Use 2 batteries 9V in series to get 18v or some aku 12v. Using adapters or similiar thing which is powered with 220v is bad idea.

[ripsdevala]

Did I do wrong? Now no sound at all
Using 9v DC adapter
https://youtu.be/-7gX0d5ernI

[ripsdevala]

This will work, i think

[ripsdevala]

All coil is done RX 6.43mH TX 6mH


What should i follow for coil wiring from this two

[CDI]

Pcb done with UA741 as LM308
Lets make the coil.....

This is correct i think... it's not that hard, just folow shema and u will find.

[ripsdevala]

Pcb done with UA741 as LM308
Lets make the coil.....

[ripsdevala]

For LM308, UA741 or LM741 works perfect. For LF353 i found LM833 working much better, cause is low noise.
Also, NJM2068 works too for LF353 replacement, but geb trimmer must be in another position to reject ferite and hot rock.

Should be:

LM308 = UA741, LM741, TL061, TL071, TL081,
LF353 = LM833, NJM2068, TL062, TL72, TL082

Regards

Thank for the reply CDI, I have lots of option now, LM308 its very rare and expensive here, i just found that TL071, TL072, TL082 is working to, i have pair each of them, the last problem is pots wiring, Im not sure with my sketch above and pic from net i just got.
I will go to electro market now to get the missing parts.

Best,
Rips

[CDI]

Can i change LM308 with OP07 or equivalent?

Got it by search, by mr ivconic him self
LM308~TL081
LF353~TL082
J107~BF245

For LM308, UA741 or LM741 works perfect. For LF353 i found LM833 working much better, cause is low noise.
Also, NJM2068 works too for LF353 replacement, but geb trimmer must be in another position to reject ferite and hot rock.

Should be:

LM308 = UA741, LM741, TL061, TL071, TL081,
LF353 = LM833, NJM2068, TL062, TL72, TL082

Regards

[ripsdevala]

Two missing R value

4k7 and 4k7

Many thanks toros

[Toros]

Can i change LM308 with OP07 or equivalent?

The most popular equivalent is NE 5534

[Toros]

Two missing R value

4k7 and 4k7

[ripsdevala]

Can i change LM308 with OP07 or equivalent?

Got it by search, by mr ivconic him self
LM308~TL081
LF353~TL082
J107~BF245

[ripsdevala]

Two missing R value


Btw what version is this? I can find only one image in the net with unclear cableing.


Anyone??

[CDI]

At the time i had spare enclosures from Fisher CZ5 and Fisher 1265 metal detectors.
So i tried to draw TGSL pcbs to fit into those enclosures, therefore i named my draws like that; "CZ5 and 1265".
At the time i also was not very skilled with Sprint Layout (not saying that i am now), so my pcbs are not state of the art.
Both are made and working.
If there are some differences; than those are "chronological" differences, as i experimented much with various modifications.
Each one of those should work.
I don't remember the details, but luckily i used to wrote about those in TGSL topic. I guess everything is there.

Thank's Ivconic, i also looked many times tgsl thread, but i didn't found cz5 files, only lay file has there.
Btw, long time ago i maked your 1265 version, it is deeper for sure than version 3.0 with BD140 audio amp.