Barracuda Legend Kit Problems

[crni1]

Thanks, I'll try.
I noticed that when the switch SW1 is turned off, the detector reacts to metal but when I turn on the switch detector only humming, I Shrunk the potentiometer Work to an end, the sound is gone or does not respond to metal.

[kt315]

you have to learn that is mean 'double field coil' and 'basket coil' matter. try SEARCH engine of forum.

[Qiaozhi]

Sorry.
I use Google Translate and is therefore error occurred.
Yesterday I finished barracuda, he immediately started working satisfactorily.
I noticed that responds poorly to gold, I returned Delay and managed to grab the gold from 3 grams to 15cm.ali not less.
I made less probes, changing damper resistor is still the same.
I would ask for the proposal, what should be done to detect finer gold from 0.5-1 gram.

Baracuda is not designed for finding fine gold. It is a beach detector intended to search for coins,
For fine gold, you need to build the Minipulse Plus, which has a 2-stage pre-amp.

[crni1]

Thanks Qiaozhi
I've already figured it out.
Do this with the switch SW1 is still not clear to me, I read the forums and someone says this is a motion detector, others say it is a non-motion, a reading scheme and an explanation for barracuda rev.2 I found that the switch SW1 includes excludes mot. and non-mot.
For me Barakuda only works if it is removed or if SW1 is turned off and when I turn it on from the speaker to hear a constant tone.
I think that an electronic part to deny or can not detect it.

On my Barracuda is winding probe of 28cm. copper wire 0.55 mm. 18 laps.
1 euro detected at 30 cm. tweezers over 45cm. board sheet 60x60cm. 1.5 meters, air tests in the room, motion mode.
I am pleased with this result but I wanted to try as non-motion

[BKY1337]

Can someone help me? I need a sprint layout from a baracuda pi with partslist.
I have the one from the full construction details Thread , but the partslist contains only one 2M2 Resistor, i can see two at the board.

I also have a partslist with 9 x 100n capacitors, the one from the full construction details thread has only 5. Is this a different layout?

Can someone give me a working layout with partslist, easy to build , maybe easy to etch with a copper clad board, toner transfer.
I need the board for a pinpointer.

Thanks.

[ripsdevala]

Use this
http://www.geotech1.com/forums/showt...arauda-upgrade

[BKY1337]

Thanks, i cant find a partlist/BOM

Is it the same as the regular Baracuda circuit?

[ripsdevala]

Thanks, i cant find a partlist/BOM

Is it the same as the regular Baracuda circuit?

Same partlist, except addition 10uf x2, some resistor change and an optional LT1054 for 7660.
Actualy look at the layout to make sure

[BKY1337]

I dont have this partslist, Mine is very different with 3x 220 uF

I also need substitutes for 2N5485,MPS 102, and maybe 7660.

The LF 412 ACN is very expensive, about 4 Euro in Germany.

[BKY1337]

This sucks, R25-R27 is missing and some Resistors are without Numbers.

[ripsdevala]

[Qiaozhi]

This sucks, R25-R27 is missing and some Resistors are without Numbers.

You should forget about the old Baracuda design. It contains numerous design errors, which are described in the Geotech Baracuda - REV-A Build Document.
If you need the REV-A version in Sprint Layout, then you'll have to duplicate the schematic and layout your own PCB.

[homefire]

LOL or just jump that and go with the Mini that is even better.

[BKY1337]

Which mini? I cant layout for myself. And i dont want to. I have thought that there are several workin versions of the baracuda with layout and partslist.

Whats the problem with the cuda cuda? Looks good , is single side, and small too, maybe a bit harder to etch.

I have the two versions from alex and ap, rev 2 , but i dont have a partslist which belongs to this, i cant find a 10 uF elko at the pcb , then i think i have the wrong one.
I want to order the parts today, but i need a bom.

Do you guys think that there is a problem with 5% Resistors instead of 1%?

[homefire]

MiniPartsPlus. Nothing wrong with the Geo Barracuda. It does what it was made to do. Coins and stuff. I'm a Prospector and like the added elements of the Mini. What This Parts List? The Alix version? BarracudabuildParts.txt