TESORO GOLDEN SABRE

[nelson]

Hi tiktak

22 cms underground for a 1 cm coin, with 19 cm coil.
This is my first coil, that is not the best one, cause it lacks on inductance and resistance values, this are not close to needed ones, so i need to finish my 22 cm coil that now needs only to be assembled and null.
Also let me know what are your difficulties with it, cause i also had some troubles that now i corrected, like placing the wrong cap value on the RX coil, so this made my GS working unstable and with very low sensitivity. Now is doing an excellent work and only need a good coil to perform better.

Regards

Nelson

Hi,
Nelson.What is the depth you have reached?For 1cm coin?
With wich coil did you test?
I still have some difficulties with making this work well!

[tiktak]

Hi

Only differances in my TGS are that I used 5,1p insted of 5,0p caps and replaced LF353 with TL082!Everything else is the same!
I have made 28 cm coil with 0,30 and 115 turns for both coils.I can measure only resistanse for now with my multimeter but ist 18,5 ohms for both.
This cap that you have mistaked is this 15n cap just next to RX coil conections to the PCB?
I use 15n for this.My speacer is 8 ohm maybe this is the reason?

[tiktak]

Hi

Max,
Sorry for the boring question again,I now that you told me that this is no good!But you have told also that what you can do with 0,25 can do with 0,23;0,24;0,30.........
So I have only 0,20 now!So tell me how much turns to try for 19cm former diameter?
I now that you are curies too.
I will make this and post.

[tiktak]

Hi

Nice work IVCONIC almost double depth!!!!
Great work!
The worst thing is that I cant find LM566!!!
For now!
But can you also post somethig like modification or adding to normal TGS.
Like small pcb that can be added to already finished TGS with nothc?
PLEASE

[nelson]

I used a 16 ohms phones to drive sound and is working excellent. I think that 8 ohms is not rigth. The rest of components i thinks are ok.
Anyway, try to request more information from Ivconic or Max that are the masters of TGS.

Regards and good luck

Nelson

Only differances in my TGS are that I used 5,1p insted of 5,0p caps and replaced LF353 with TL082!Everything else is the same!
I have made 28 cm coil with 0,30 and 115 turns for both coils.I can measure only resistanse for now with my multimeter but ist 18,5 ohms for both.
This cap that you have mistaked is this 15n cap just next to RX coil conections to the PCB?
I use 15n for this.My speacer is 8 ohm maybe this is the reason?

[Max]

Max,
Sorry for the boring question again,I now that you told me that this is no good!But you have told also that what you can do with 0,25 can do with 0,23;0,24;0,30.........
So I have only 0,20 now!So tell me how much turns to try for 19cm former diameter?
I now that you are curies too.
I will make this and post.

Hi tiktak,
what you can do with 0.25mm you can do also with 0.24 or 0,28... or even 0.30mm. I can say you that I've realized coils with many gauges from 30AWG (0.25mm) up to 0.30mm: all worked well, at the end, on bandidoII.
But what you ask is not possible cause 0.20 have too much resistivity to get a good number of turns for good inductance and keeping resistance in the good range. Too low gauge in this case.
Just waste of time.

Kind regards,
Max

[tiktak]

Hi

Thanks,
Max!
You have save me time.
I will have to wate for wire!
So I will go full around with this coil that I have.

[Max]

Thanks,
Max!
You have save me time.
I will have to wate for wire!
So I will go full around with this coil that I have.

Hi tiktak,
if you ran out of wire you could maybe dismantle something to get it...
if don't want wait for "new" if you don't find there locally.

Do you know anyone that is in the pinball business ??? If so belive me you'll ever find the wire you need. I have a friend that is in the business and interested in MD too... and he gave me a number of solenoids from old pinballs, lot of good copper wire for free!

I've one of my coils now from an old "LETAL WEAPON 3" pinball of DATAEAST!

Other stuff where you can find some wire are dc or ac motors (some have unlocked wounds that you can easy recover) , tv e.g. degauss coils, deflection sets, old transformers, old relays you could find e.g. even in cars electric stuff ...and a thousand of other places!

I have a good storage of "new" wire... but used much of that stuff for experiments on coils, even with extremely good results.

Wire is wire! No need to know if first was in motor or solenoid... if it suits you needs you could make very good coils with it.

Only thing needed is a good micrometer to measure it and be sure of gauge.

I think that is also a positive recicle activity cause most of times this wire would be thrown in the environment instead of reuse it!

Best regards,
Max

[Max]

Hi all,
found another little mistake (?) or , well, maybe just a difference between schematic and PCB:

- IN SCHEMATIC: in last op. amplifier before BC517 I've noticed that between PIN6 and GND there is a 33K resistor
- IN PCB: that resistor is labeled 2K2

I think that it was intentional to give more power in audio stage, not really a mistake (cause detector must work also with 2K2, and increased gain)...
but just another difference !

Who made that increase in last op. amp. gain ? Who knows ?

Unfortunately I have too few time to test my (almost finished) GS now... but wait till next week! Damn!

Best regards,
Max

[tiktak]

hi

Hi,
Max.
Thanks for the hint!!
Clever.I will think what will use@!
The probleme is that I cant measure.
I go to where motors are rewund and a friend wind me this wire.
But you give me a good idea.But the probleme is that most of this parts are made such way that wire is hard or inposible to be taken.

[Max]

Hi,
Max.
Thanks for the hint!!
Clever.I will think what will use@!
The probleme is that I cant measure.
I go to where motors are rewund and a friend wind me this wire.
But you give me a good idea.But the probleme is that most of this parts are made such way that wire is hard or inposible to be taken.

Not pinball solenoids... I have more than 100 and all are "unlocked" by varnish... I think cause of the heat that could fire varnish (don't really know why)... also relays the same, some motors... look around you'll find!
Or buy wire there where they rewound motors (so someone still do it ???)

[tiktak]

The probleme is that my man is on work afther 25.08.............
Too many time,so I will look around!

[Ultimate_Haze]

Hello

Hello,
You use 12V battery for tesoro golden sabre right?
I can find 12V 3amp but its look big and hevy!
Is this good?Can I recharge with home adapter?
Or I have to buy expensive unit?
Thanks

[Max]

Hello,
You use 12V battery for tesoro golden sabre right?
I can find 12V 3amp but its look big and hevy!
Is this good?Can I recharge with home adapter?
Or I have to buy expensive unit?
Thanks

Hi Ultimate,
your battery have good voltage (12v) but don't make mistakes man.
3 Ahour mean you could have something 50 istantaneous current!
You could melt tracks on PCB quite easy that way (vaporize your work!).

Also heavy... yes... something about 1.5 Kg I think, a big bear to carry over!

Why don't you use e.g. 10 NiMh cells (1.2volts each) 700mA/h or more?
You can recharge them too and save lot of weight.

With actual consumption you could use it for 14+ hours with 700mAh (AAA cells) ! Seems good ! Whi search more than + than 14Hours between any charge ?

For test using 12v 3Ah I suggest you put a fuse of 200mA (fast) in series with battery. This would save at least the board is something goes wrong!

Best regards,
Max

PS:
FOR CHARGE

I suppose you have a lead acid battery, so you need use an appropriate charger that limits current (e.g. find on google lm317 charger lead-acid).

normally charge is at constant voltage (13.8volts) limits are for current:

FAST CHARGE : 4 hours at 1/4 + 1/12 current max
NORMAL CHARGE : 14 hours 1/12 current max

[Nihil Roma Maius]

So he's trying to discredit me here

Because you start provoking first.

RObert was banned for insult to Admin. But Admin delete rapidly and few people read it. He use terms against admin as "be man", etc. Was banned before his post against admin. Don't worry, while you don't touch admin, no problem, you can post all the comics you want, and the admin permits the discredit of the forum causes by the comics.

As I see, your signature appears in each post.

If I have not patents (but there are but no international), what!!!


But I can't see your coil, I'm sure you don't start it yet!