Analogue-sequencer

Perfect timing!  I was just about to tackle this project in the next 
few days.  Last time I looked at the US BOM I noticed a few problems, 
so this is great.

Many thanks!

Ivan


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--- In analogue-sequencer@yahoogroups.com, ivancu@... wrote:
> Perfect timing!  I was just about to tackle this project in the next 
> few days.  Last time I looked at the US BOM I noticed a few problems, 
> so this is great.
> 
> Many thanks!

You're welcome. Be forwarned, though. While I have made a good effort to validate the part 
footprints and such I cannot guarantee that the list contains all of the parts, nor that they are 
all right. Use it as a starting point.

For example, some of the ceramic caps spec'd on the original BOM are good, and others I 
found alternatives for. The DS1210 doesn't seem to be available anymore, but the DS1210+ 
is, and the spec sheet is the same file. I don't have a power supply listed (will be acquired 
from Jameco), and other things like that...

-Steve

> The DS1210 doesn't seem to be 
> available anymore, but the DS1210+ 

The DS1210+ is a lead-free DS1210, to meet EU RoHS rules.
You might find a few part numbers change like that.

Best regards,
Colin Fraser
Sequentix Music Systems Ltd
http://www.sequentix.com

--- In analogue-sequencer@yahoogroups.com, "Colin Fraser" <colin@...> 
> The DS1210+ is a lead-free DS1210, to meet EU RoHS rules.
> You might find a few part numbers change like that.

Ah, thanks. I figured it was something like this... The spec just
simply doens't say it, and I must have been looking in the wrong part
of the Maxim / Dallas site for the data.

Also, just so everyone knows, I just had to re-upload the BOM. It
turns out that I picked the wrong part for the 74HC241 from Digi-Key.
My BOM had originally indicated a 296-8270-5-ND, which is the SOIC
part. The proper part (as now indicated) is the 296-8271-5-ND.
Fortunately my order hadn't shipped yet, so it was possible to change
the order.

The updated BOM can be found at
http://www.nuxx.net/files/p3_bom_c0nsumer.pdf just like the previous one.

Anyway, sorry about the confusion.

-Steve
 c0nsumer@nuxx.net

Thanks a lot for this info!
Much appreciated...

  ----- Original Message ----- 
  From: Steve 
  To: analogue-sequencer@yahoogroups.com 
  Sent: Tuesday, August 08, 2006 10:36 AM
  Subject: [analogue-sequencer] Re: My Bill of Materials


  --- In analogue-sequencer@yahoogroups.com, "Colin Fraser" <colin@...> 
  > The DS1210+ is a lead-free DS1210, to meet EU RoHS rules.
  > You might find a few part numbers change like that.

  Ah, thanks. I figured it was something like this... The spec just
  simply doens't say it, and I must have been looking in the wrong part
  of the Maxim / Dallas site for the data.

  Also, just so everyone knows, I just had to re-upload the BOM. It
  turns out that I picked the wrong part for the 74HC241 from Digi-Key.
  My BOM had originally indicated a 296-8270-5-ND, which is the SOIC
  part. The proper part (as now indicated) is the 296-8271-5-ND.
  Fortunately my order hadn't shipped yet, so it was possible to change
  the order.

  The updated BOM can be found at
  http://www.nuxx.net/files/p3_bom_c0nsumer.pdf just like the previous one.

  Anyway, sorry about the confusion.

  -Steve
  c0nsumer@nuxx.net



   

[Non-text portions of this message have been removed]

Which version of the P3 Boards is this for BOM for?


Dave

Jesse wrote:

>
> Thanks a lot for this info!
> Much appreciated...
>
> ----- Original Message -----
> From: Steve
> To: analogue-sequencer@yahoogroups.com 
> <mailto:analogue-sequencer%40yahoogroups.com>
> Sent: Tuesday, August 08, 2006 10:36 AM
> Subject: [analogue-sequencer] Re: My Bill of Materials
>
> --- In analogue-sequencer@yahoogroups.com 
> <mailto:analogue-sequencer%40yahoogroups.com>, "Colin Fraser" <colin@...>
> > The DS1210+ is a lead-free DS1210, to meet EU RoHS rules.
> > You might find a few part numbers change like that.
>
> Ah, thanks. I figured it was something like this... The spec just
> simply doens't say it, and I must have been looking in the wrong part
> of the Maxim / Dallas site for the data.
>
> Also, just so everyone knows, I just had to re-upload the BOM. It
> turns out that I picked the wrong part for the 74HC241 from Digi-Key.
> My BOM had originally indicated a 296-8270-5-ND, which is the SOIC
> part. The proper part (as now indicated) is the 296-8271-5-ND.
> Fortunately my order hadn't shipped yet, so it was possible to change
> the order.
>
> The updated BOM can be found at
> http://www.nuxx.net/files/p3_bom_c0nsumer.pdf 
> <http://www.nuxx.net/files/p3_bom_c0nsumer.pdf> just like the previous 
> one.
>
> Anyway, sorry about the confusion.
>
> -Steve
> c0nsumer@nuxx.net <mailto:c0nsumer%40nuxx.net>
>
> [Non-text portions of this message have been removed]
>
>

v1.6. Like I said, though, double check it, and / or be ready to order additional parts or have 
spares. I was pretty careful with it, but until I've double-checked it during installation and 
such, I make no guarantees.

-Steve

--- In analogue-sequencer@yahoogroups.com, DB <dave@...> wrote:
>
> Which version of the P3 Boards is this for BOM for?

I just ordered quite a few parts from Mouser.  From what I can tell a
LOT of the parts you have listed are RoHS.  I spent a few hours
digging through the website and finding non-RoHS parts.  Still haven't
gotten everything, but I should be able to from Jameco and others that
have better non-RoHS stock.

Have you built up your P3?  Any soldering problems with the RoHS parts?

Ivan


>
> Like I said, though, double check it, and / or be ready to order
additional parts or have 
> spares. I was pretty careful with it, but until I've double-checked
it during installation and 

> such, I make no guarantees.
> 
> -Steve

Hi Ivan

Ivan wrote:
> I just ordered quite a few parts from Mouser.  From what I can tell a
> LOT of the parts you have listed are RoHS.  I spent a few hours

The issue has been discussed quite a bit on the Synth-DIY list. Unless 
you're selling a product to Europe, it doesn't matter whether you're 
using RoHS compliant parts or not. Just make sure you're using 
traditional lead solder, as it works with both leaded and unleaded 
parts, whereas the new stuff seems to be a bit trickier to use.

Bye
Martin

-- 
http://www.navisto.ch
http://www.myspace.com/navisto

> I just ordered quite a few parts from Mouser.  From what I can tell a
> LOT of the parts you have listed are RoHS.  I spent a few hours
> digging through the website and finding non-RoHS parts.  Still haven't
> gotten everything, but I should be able to from Jameco and others that
> have better non-RoHS stock.
> 
> Have you built up your P3?  Any soldering problems with the 
> RoHS parts?

RoHS compliant parts generally have a pure tin finish on the component pins
rather than a lead/tin mix.
As soon as you wet the pin with a lead/tin solder, then it will become
coated with lead/tin same as a non-RoHS part.
And you'll get a much better joint than you would with the toothpaste they
call 'lead-free solder'.
There is no problem using leaded solder with RoHS parts.

Best regards,
Colin Fraser
Sequentix Music Systems Ltd
http://www.sequentix.com