Barracuda Legend Kit Problems

[Qiaozhi]

Thanks. I have made my own partslist now for the Alx & Ap Rev2 Version.

I think i can change the LF412ACN which cost me 4 Euro to TL072 or TL082 which costs only 40cent.

I don't understand why you're insisting on building a version of the Baracuda that is known to have design errors.
Did you not read the Build Document for the Geotech Baracuda REV-A?

[BKY1337]

Thanks. I have made my own partslist now for the Alx & Ap Rev2 Version.

I think i can change the LF412ACN which cost me 4 Euro to TL072 or TL082 which costs only 40cent.

[Koala]

For which Layout is this? I have CUDA CUDA and Alx & Ap Rev2 , both seems to be different.

What means 0,5 % Tolerance? This means i cant use my 5% Resistors?

5% is fine for most.

And 1% or matched where it says .1

[BKY1337]

For which Layout is this? I have CUDA CUDA and Alx & Ap Rev2 , both seems to be different.

What means 0,5 % Tolerance? This means i cant use my 5% Resistors?

Qiaozhi: The gerber Files in this thread are from a double sided board, i can only etch single side boards.

I think i need to make a partlist for myself , The CUDA CUDA looks nice but incomplete, I think i will make one for the REV 2 from Alx and AP.

I have now almost every Partslist , but not the one that i need. :-D

[homefire]

AnchorBarabom.pdf

[Qiaozhi]

Whats the problem with the cuda cuda?

Please read the Build Document -> Geotech Baracuda - REV-A - Project Details

[BKY1337]

This is another one with tantalum capacitors. Not 1.3. Mine is from the full construction thread here in the forum Alex and Ap Rev 2.
The partslist doesnt match the layouts in the zip archive.

[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

[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]

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

[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.

[ripsdevala]

[BKY1337]

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

[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.

[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