TESORO GOLDEN SABRE

[Virdi_248]

dfbowers [quote =; 111643] ¿Tiene el escudo a tierra como se documenta? quote] [/

wire connection of the arrow?

It is just that, that is my question.

[dfbowers]

Hi dfbowers and anyone else:

What kind of wire do you use for connections to pots, switches, and even tx, rx coils? I see red insulated wires. Is it multi or single strand? What gauge do you like?

Stuff I use seems to fight me...

Regards,

-SB

Simon,

I have been using 22 AWG (stranded) from Radio Shack. I think it comes in a few different colors.


Don

[dfbowers]

dfbowers [quote =; 111643] ¿Tiene el escudo a tierra como se documenta? quote] [/

wire connection of the arrow?

It is just that, that is my question.

Look at colors.. does this help at all? Bare GROUND wire in cable goes to same connection as GREEN wire on PCB.

Does this help you at all?


Good luck!

Don

[Cyclonite]

dfbowers [quote =; 111643] ¿Tiene el escudo a tierra como se documenta? quote] [/

wire connection of the arrow?

It is just that, that is my question.

Hi @Virdi_248,

Where is your Shield Spacing Gap?

Extract from @Ivconic's article: TGSL Coil Making.pdf

... At the end leave 5mm to 1cm gap. This is OBLIGATORY! Without gap you get NO Faraday shield. Worth nothing! ...

Regards,

Robert

5mm to 10mm Gap (Shield must have OPEN Gap)

[geminis74]

hi, Dfbowers
I think you have the opposite RX input.
RX START input is not inverted (pin 5 lf 353)
END RX inverting input (pin 6 lf 353)
if dual-tone sound, then turn 180 º RX
greetings

[dfbowers]

hi, Dfbowers
I think you have the opposite RX input.
RX START input is not inverted (pin 5 lf 353)
END RX inverting input (pin 6 lf 353)
if dual-tone sound, then turn 180 º RX
greetings

You are correct. Problem is solved by flipping over coil.

[dfbowers]

Hi @Virdi_248,

Where is your Shield Spacing Gap?

Extract from @Ivconic's article: TGSL Coil Making.pdf
Regards,

Robert

5mm to 10mm Gap (Shield must have OPEN Gap)

It's there.. Just covered by tape.

[Virdi_248]

[quote = ciclonita; 111670] Hola @Virdi_248,

¿Dónde está su escudo Espaciado Gap?

Extracto de la @artículo Ivconic de: TGSL Making.pdf bobina
Un cordial saludo,

Robert

5mm a 10mm Gap (Escudo debe tener ABIERTO Gap)[/ Quote]


Hello.
Yes. Placed on my reel

[Virdi_248]

Correct the connections?

[geminis74]

please read before asking
Look closely at the photos, is contrary

[Virdi_248]

please read before asking
Look closely at the photos, is contrary

Sorry I have already set in the photo.

If I'm right. Faraday (tx) connected (end tx)
Faraday (rx) connected to (final rx)

Language is a big problem. Apologies.

[simonbaker]

Simon,

I have been using 22 AWG (stranded) from Radio Shack. I think it comes in a few different colors.


Don

Thanks. And what do you use for the cable in your picture?

Regards,

-SB

[simonbaker]

Look at colors.. does this help at all? Bare GROUND wire in cable goes to same connection as GREEN wire on PCB.

Does this help you at all?


Good luck!

Don

Hi Don:

It looks from your pictures that you ground the RX lead non-standardly at the shield. Other docs somewhere say to ground the lead that goes to the inverting input of the LF353. Am I correct that you ground the lead that goes to the non-inverting input?

Yet you seem to have excellent TGSL. So does it matter which RX lead is grounded at the shield? Can you try grounding the other RX lead at the shield and tell us what the difference is? Also, what happens if you don't ground the lead at all?

BTW: your IC sockets look very high quality. Where do you get them and how much do they cost?

Regards,

-SB

[dfbowers]

Hi Don:

It looks from your pictures that you ground the RX lead non-standardly at the shield. Other docs somewhere say to ground the lead that goes to the inverting input of the LF353. Am I correct that you ground the lead that goes to the non-inverting input?

Yet you seem to have excellent TGSL. So does it matter which RX lead is grounded at the shield? Can you try grounding the other RX lead at the shield and tell us what the difference is? Also, what happens if you don't ground the lead at all?

BTW: your IC sockets look very high quality. Where do you get them and how much do they cost?

Regards,

-SB

Sorry.. I see now. All you guys are right! I switched black and red and rewired Rx start and Rx stop to keep the right phase. Ground shield should be tied to R13 that goes to pin 6 (inverting)of u101a . Still 29cm on 1e coin. Audio seems to be slightly improved and sensitivity control seems to have more effect. Does make a difference! I have heard some comment that it does not make a difference, but now I believe that it does.
This is my second TGSL. I have to go check my first one now to see if that one is wired wrong as well.

I have been relic hunting with TGSL#1 already and I have dung things deep enough that I am comfortable with it. Usually if I take a shovel full of dirt and I find something still in the hole I have good comfort level with the machine.

I have been working a large Spanish -American war camp here and Pennsylvania and the farmer just powed today. Time to hit the fields a little..

Simon, I bought my IC sockets from Digikey (see attached).

ED90048-ND 8 PIN SOCKET $0.92
ED90049-ND 14 PIN SOCKET $1.42

Don

[simonbaker]

Sorry.. I see now. All you guys are right! I switched black and red and rewired Rx start and Rx stop to keep the right phase. Ground shield should be tied to R13 that goes to pin 6 (inverting)of u101a . Still 29cm on 1e coin. Audio seems to be slightly improved and sensitivity control seems to have more effect. Does make a difference! I have heard some comment that it does not make a difference, but now I believe that it does.
This is my second TGSL. I have to go check my first one now to see if that one is wired wrong as well.

I have been relic hunting with TGSL#1 already and I have dung things deep enough that I am comfortable with it. Usually if I take a shovel full of dirt and I find something still in the hole I have good comfort level with the machine.

I have been working a large Spanish -American war camp here and Pennsylvania and the farmer just powed today. Time to hit the fields a little..

Simon, I bought my IC sockets from Digikey (see attached).

ED90048-ND 8 PIN SOCKET $0.92
ED90049-ND 14 PIN SOCKET $1.42

Don

Thanks. Good luck hunting. I'll bet's it's nice there in PA. Be interested what TGSL finds.

lunamay would like to get a TGSL circuit diagram showing voltages at all points. Since you have a good one, maybe some time you can show us what you measure. Of course some points depend on pots, which makes more work; CCW, Middle, CW probably needed. I'll do it if ever get hot machine.

Regards,

-SB