Help parts#'s dont match board id

[Dasbear]

Overall this is one of the best kits I've ever worked on Silverdog really made it easy to locate and id most everything its just these last 2 groups of parts???
sorry not sure what they are called .
Q:1) There are 10 sm square parts 5 gray 5 white that have #'s that don't match whats on the circuit board (5)#472J100 & (5)#10NK100. but on the board are 5 places marked 100N and 5 places marked 4N7 I'm just not sure which parts go where.

Q:2) On the top of circuit board are around 12 bright red lines with solder pads and holes at each end Do I need to add BRIDGES at these locations or are they already Bridged? I am working on the REV2 version. Any help is much appreciated.

[barleg]

Hi Dasbear, I think I might shed some light to your questions, I'll mention though, that I'm not at all skilled in electronics.

1) I believe that you are mentioning the capacitors. I had the same problem when I started to build my baracuda. The capacitors have a certain "naming standard" or how to say. They can be coded with some logic according to their attributes. You can take a look here and see for yourself:

http://www.csgnetwork.com/capcodeinfo.html
http://www.electronics-tutorials.ws/...tor/cap_5.html

For example, "4n7" can also be written as "472J100"

2) You do not have to add bridges yourself

Good luck building your board. A tip is to double check all your components each time you solder them on. It's painful having to remove them.

Good page for checking resistors:
http://www.digikey.se/en/resources/c...or-code-4-band

[Davor]

It is easy. Just find first 3 digits, of which first two are simple numbers, and a third one is the number of zeroes. Wfat you get is a capacitance in pF. Say 472 -> 47 00 -> 4700pf which is the same as 4.7nF or 4n7
The idea behind it is to avoid "µ" in notation as it complicated things in the era of ASCII.

For most uses you may ignore letters and numbers that follow, as they stand for dielectric material properties, and you seldom need to know those.

[Koala]

I could be wrong but to me it looks like something is wrong ?? 10NK100 is 10 nanofarad but your board has spaces marked 100N are you sure you have not swapped some over already

I would guess you have filled the 10N hole in your board with something like 104j100 ??? which should have gone in the 100N holes

If not there must have been something wrong with your kit ??

472J100 is 4N7 so will fit some of your empty spaces

[Dasbear]

looks like 4N7 on board is #472J100 like tables show but I still can't be sure if #10nk100 is 100n as for swapping wrong parts I used the process of deduction and pics of assembled boards. So here is what I have: 15 rectangles on pcb 5x 100n, 5x 4n7, 3x 470n=#u47k, 1x 6n8=#6800, 1x 1n=102j. Here are the parts I had
5x (472j100), 5x (10nk100), 3x (u47k63), 1x (6800 100). where I show ****=#**** I have soldered these already HOPE that's right sorry for making this so long I hope I'm clear on explaining or does it sound like rubble? All thats left is 2 sets of 5 parts / 2 sets of 5 places.

[Dasbear]

Here is a picture of the board so far to help with explanation if you spot any discrepancies in placment of 4 red & 1 gray capacitors let me know.
thanks to all for your help

[Koala]

As far as I know the first part is the value the last part is the voltage and the middle is the tolerance 10nk100

10N K=10% and 100V so don't fit you spaces you have left

But I could be wrong their are so many different way of marking capacitors

[Qiaozhi]

Here is a picture of the board so far to help with explanation if you spot any discrepancies in placment of 4 red & 1 gray capacitors let me know.
thanks to all for your help[ATTACH]32766[/ATTACH]

Why don't you just ask Silverdog? It could save you a lot of agro.

[Dasbear]

I thought it would be a quick simple answer but I reckon not. I will ask Silverdog

[Stevio]

Here is silverdogs reply when i asked about caps 100nf is marked 104j100 6n8 is with 6800 100
4n7 is 472j100
470n, 47k63 or 474j100
1nf 102j100
He seems to have covered it thanks

[Koala]

Here is silverdogs reply when i asked about caps 100nf is marked 104j100 6n8 is with 6800 100
4n7 is 472j100
470n, 47k63 or 474j100
1nf 102j100
He seems to have covered it thanks

except you have 10NK100?? does that mean they are wrong

[Dasbear]

Post #2&3 above said 4N7=(472J100 so I placed these at 4n7 location) that left 5 10NK100's at places marked 100N so I took a risk since I had not heard from silverdog and all seems to be slowly coming together. I believe my problems may be putting the right coil together now.

[6666]

so I took a risk

How do you expect your project to work if you dont build it with the correct parts.

4n7 = 4.7nf the n = the decimal point. EIA code 472

100nF is 0.1 microfarad = EIA code 104

10nK100 is 10nf or 0.01 microfarad rated at 100 volts = EIA code 103

[Dasbear]

I had to trust that silverdog Knew that what he sent in kit was correct also the detector is now picking up objects 3-8" so its a matter of putting the right coil together and pots set correctly. My last post about "baracuda not working" has been updated.
(On board 4n7) I put 472j100 (on board 100N) I put 10nk100.

[CAS]

(on board 100N) I put 10nk100.

If the board says 100n then 10nk100 is the incorrect value. 10nk100 is only 10nF. You need a 100nF cap. The 100 at the end of 10nk100 denotes that is rated at 100v. An incorrect value may have been added to the kit by mistake. You will find that the circuit will operate better with the correct value in place.