Barracuda Legend Kit Problems

[BKY1337]

Thanks, i cant find a partlist/BOM

Is it the same as the regular Baracuda circuit?

[ripsdevala]

Use this

http://www.geotech1.com/forums/showthread.php?23436-Barauda-upgrade

[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.

[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

[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.

[kt315]

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

[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.

[homefire]

Faster Coil. Lower Delay time. All one can do.

[crni1]

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.

[kt315]

In English Please !

he complains no getting good depth on the gold.

[homefire]

In English Please !

[crni1]

Јуче сам завршио Баррацуда, почела одмах и веома ефикасан рад.
Ипак сам приметио да реагује лоше за злато, вратио сам Одлагање сада открити злато од 3 грама до 15 цм. или не мање злато.
Направио сам мање сонде, промена амортизера отпорник је и даље исти.
Замолио бих за предлог.

[ionut_mtb]

thanks, i did the last steps, is working, 15cm for a coin, but thats a start, delay need to check (no sound for small coin and al foil).

[Qiaozhi]

Hey guys! Got one problem with the kit, i have only multimetter. i assembled board until step 7, +5v -5v ok, my voltage at U7 pin1 is +1.19 ( this is the minimum i can adjust from trimmer R14) and when i aproach metal near coil is increasing to max +4.5. In the step7 says that i shoud have voltage at U7 pin1 -2.1V. The coil is only for testing 23turns 190mm diameter of 7strand pvc cable 0,12mm. This is what i have... also i get the tone if i connect speaker to u4 pin4 and 0v, and tone if i put the coil near a pear of headphones.

The voltage suggested in Step 7 was based a single build, and may vary between different builds. The important point is that it changes when metal is placed near the coil. Obviously, without a scope you are trying to build the project with one arm tied behind your back, and the DVM tests are only there as a guide.

[ionut_mtb]

And photo