BARACUDA-Legend-1

[Wilson]

Hello everyone, I posted on the forum a change in the circuit to operate as pimpointer SW1 and worked on the first try. In the second plate I built it did not work as I expected. I observed that the pair of FETs directly influences the resulting instability in this setting operation, any difference in characteristics between the two FETs produces a bad functioning as pimpointer the delay control also affects this setting. I believe that due to these problems was not used SW1 on the schema of the original Barracuda, for this reason I removed the video from the post 750 and recommend not to modify the circuit.
I'm sorry, I should have researched better, my intention was to collaborate.
Hugs for everyone.

[mohandes]

no body help me?

i make it and finish,but i think my wiring maybe have errors.
please help me
thanks

[tonyh]

mohandes,
you are having problems, to be honest your circuit is a mess - caps are too big for board, component legs are too long we cannot see the other side of the board. There could be lots of short circuits. I would recommend you buy a kit from Silverdog and start again if you want to build this detector.

[bernte_one]

hello mohandes

threshold pot is totally wrong connected
blue cable first pin of pot is the lowest holes on pcb
red is middle hole
white upper hole

[mohandes]

mohandes,
you are having problems, to be honest your circuit is a mess - caps are too big for board, component legs are too long we cannot see the other side of the board. There could be lots of short circuits. I would recommend you buy a kit from Silverdog and start again if you want to build this detector.

yes
you say right,i check all by multi meter and are is ok(no short circuit)
mr wilson say should remove Delay and set bridge instead it, and in pics that i send i certain two hole and write near it what?,thease holes for switch or bridge?

[mohandes]

Can any one put the set points(true diagrams)for the baracuda to find errors myself

[Wilson]

Hello Mohandes, I have not talked to you remove the DELAY, but the fet Q5.: Nono:

[satdaveuk]

after the relative silence since my last post i have decided to end my investigation at this point, rereading the thread it is obvious to me that all info needed to replicate a true "anchor barracuda" is right here.
revealing the relative individual merits of a particular component in relation to this design would be a mistake, as this site is about learning.
I will leave this here though:- sw1 is not a pinpoint nor a setup tool(though i can see why you might think that).

Hi Sinclair
As you well know the Original Barracuda if correctly built to Anchor specification didn't ever need a pinpoint function because it was and always has been a non motion machine.
If anyone has still got any doubts with my statement and thinking it was a motion format then there are allot of detectorists out there with Anchor built Barracudas that are faulty.
Originally I thought my build was faulty because quite a few on here were telling me that the Barracuda was motion type which is and was utter nonsense.
The reason why most here have got motion type is because they went straight into modifications and deleting integral parts of the anchor design which Apberge had painstakingly replicated for us.
Maybe I am old fashioned but if equipment doesn't work and you find by pulling a FET everything works to how you think it should be, and may I add think because nobody took the time to discover what shortfalls they were creating and how the Barracuda should really work, It was all guess work, And of course we all know how quickly Silverdog churned the kits out , Thats why we are often talking on cross purposes because in effect you have two different machines, one motion the other non motion, one needs 12v supply the other will work off 9v , one distinguishes between coloured metals and iron the other does not.
I made another board up last night same as before off the original Apberge, but on this build intend to follow Silverdog version which is easy enough because its just less component count and a FET placed instead of the TIP127 Darlington transistor,After experiments are finished will be easy enough to carry on and make it original desigh.
The only difference will be Fets shall be match up and all components as usual will be checked for accurate specification before planting.
Once done will carry out intensive tests using same coils which are 9",8" and of course my little gem of a coil 1.5" that I use for shallow hunting in streams and pinpointing very small objects.
So as you can now tell I am far from calling it a day with this marvel of a design which even by today's standards is up there with the best of them.
The only ever complaints with these machines almost from day one was maniacal, Coil breakdown was water ingress, Faulty electronics water ingress leaking through the coil socket and damaging the electrics, The word quickly got around and some people who had bought these machine were taking preventive action before any damage was done.
The users that had already damaged coils couldn't get them replaced even under guarantee period so dealers were replacing them for the whites surf PI coil and changing the coil socket on the machines to suit.
First of all the news of how much deeper the Barracuda would go with the mod, and in know time at all allot of customers were having them modified even though there original coil was fine, It was only months later that they realized by changing the coil which gave them a bit more depth they had actually interfered with the clever design of the machine Which I quote.... Since having the new coil fitted not so easy to be able to pinpoint location of metal objects, Now although the Barracuda never had a pin point mode, it didn't infact ever need one because with original coil it was bang on center, with the surf coil you were having to dig bigger holes because it wasn't centralizing .
The second common complaint with that particular modification was I quote... Not been able to distinguish between coloured and non coloured metals.
So basically by one modification, that's all it took to destroy its unique functions, the very functions that most people actually bought the machine for in the first place.
I've got all these transcripts from real people that actually did and some still do own these machines together with there correspondence and customer detail kindly posted to me. That is how I have been able get so much accurate information and detail of how the original Barracuda performed. All interesting stuff isnt it, not always what you know its who you know .
Anyways will let you know how I get on with the Wannabe Barracuda in due course

Regards

[Rumcajs]

Hi antonioknight,

the main problem is your battery: the 9V battery (6A22?) or accumulator is small for the Bara.
The 9V battery long-time current is cca. 30mA.

please use two 4,5V battery (or refillable accus), for example_ http://olcsoakkumulator.hu/pictures/products/397.jpg
or better than working from 12v/3Ah accu.

brg

Rumcajs

[Rumcajs]

Hi mohandes,

the capacitors look like big dimensions for this circuit. The second problem is battery: the 9V battery (6A22?) or accumulator is small for the Bara.
The 9V battery long-time current is cca. 30mA. The battery ,,power'' must be at least 100mA or higher, ok?

please use two 4,5V battery (or refillable accus), for example batt.: http://olcsoakkumulator.hu/pictures/products/397.jpg
or better than working from 12v/3Ah accu.

Salam

Rumcajs

[mohandes]

Hi mohandes,

the capacitors look like big dimensions for this circuit. The second problem is battery: the 9V battery (6A22?) or accumulator is small for the Bara.
The 9V battery long-time current is cca. 30mA. The battery ,,power'' must be at least 100mA or higher, ok?

please use two 4,5V battery (or refillable accus), for example batt.: http://olcsoakkumulator.hu/pictures/products/397.jpg
or better than working from 12v/3Ah accu.

Salam

Rumcajs

Hi my friend
thanks , ok i buy caps polyester caps ,beacuse i think mika caps better so i buy them and they mor bigger than polyester.
can i use ceramic caps?
which model is better?

[bernte_one]

has anyone build the smd versin of baracuda
with the layout from hispalba

i think have found some bugs
can we discuss about it
if i am right or not?

[Toros]

has anyone build the smd versin of baracuda
with the layout from hispalba

i think have found some bugs
can we discuss about it
if i am right or not?

Hello Bernte one! Where can I see this PCB from hispalba?

[6666]

Try post #616

[SVEN1]

Just rec'd 2 Silverdogs Cuda PCB's. The Parts sheets calls for 6800uf cap and the PCB says 4700uf.
Since I had some Rubycon 6800uf, used them. Was the reason for the change to the 4700uf because they were easy to find?