Parts cost change with vendors often.   So -+ a few $ is acceptable 

~~ _/) ~~~~ _/) ~~~~ _/) ~~~~ _/) ~~



On Jun 28, 2015, at 9:55 AM, Paul Birkel <[email protected]> wrote:

Tom:  Thanks for the tip :->.  (Note that those are actually 25v-rated; the 
50v-rated are a bit more.)  Do the prices fluctuate much (that's just shy of 
doubled!), or have you just not bought in a while?

> On Sun, Jun 28, 2015 at 9:20 AM, Tom Lafleur <[email protected]> wrote:
> example:
> 
> C1206C104K3RACTU Kemet $0.017 at 1000 parts ($17.00) , last time I got 1000 
> parts for $0.009
> 
> These are 1206 parts X7R .1uf 50v 10%, they do fit over the pads common on 
> our boards.. Not perfect, but good enough!  Maybe we should modified the pads 
> to make it fit both parts on future boards?
> 
> 0805 and smaller parts are a bit cheaper, larger that 1206 cost a bit more as 
> the industry has move away from these larger parts.
> 
> common in cell phone today is 0201 to 01005 parts!!!
> 
>> On Sun, Jun 28, 2015 at 8:51 AM, Tom Lafleur <[email protected]> wrote:
>> I use1206 parts, they fit fine over the .2in spacing used on our boards
>> 
>> ~~ _/) ~~~~ _/) ~~~~ _/) ~~~~ _/) ~~
>> 
>> 
>> 
>> On Jun 28, 2015, at 8:35 AM, Richard Cini <[email protected]> wrote:
>> 
>> Interesting idea. I wonder (out loud) if changing all bypass caps to 
>> something like 2012 or larger and mounting them on the back would free up 
>> additional top-side space in the denser boards? 
>> 
>> I remember long ago that some people used IC sockets with a bypass cap 
>> mounted in the center of the socket. I think they still make them, but they 
>> probably cost more than the sum of a regular socket and cap.
>> 
>> For parts ordering, I usually use Digi-Key or Jameco; sometimes Mouser but 
>> only if the others don’t have it. I also buy odder parts from “acpsurplus” 
>> or “huskerfan40214” on eBay. I usually buy ahead and in bulk for projects to 
>> I try to take advantage of volume discounts. The downside is that I have a 
>> large box of tubes of chips. When a new project comes up, I “go to the parts 
>> cage” and pull parts, then do a fill-in order if needed. If I’m running low, 
>> I’ll order in quantity and stock it. For the most part, I’m only doing 
>> refill orders at this point — it’s rare that I don’t have a part in-stock. I 
>> keep an Excel spreadsheet of my inventory so I know where I am with stuff. 
>> 
>> Rich
>> 
>> --
>> Rich Cini
>> Collector of Classic Computers
>> Build Master and lead engineer, Altair32 Emulator
>> http://www.classiccmp.org/cini
>> http://www.classiccmp.org/altair32
>> 
>> From: S100-Post <[email protected]> on behalf of Paul Birkel 
>> <[email protected]>
>> Reply-To: S100-Post <[email protected]>
>> Date: Sunday, June 28, 2015 at 8:10 AM
>> To: S100-Post <[email protected]>
>> Subject: Re: [N8VEM-S100:7326] Re: [N8VEM: 19750] Re: Possible updates to 
>> the N8VEM SBC V2 BOM
>> 
>> SMT bypass caps --  a very novel idea ... at least for me.  Need to try it!  
>> What (physical) size?
>> 
>>> On Sun, Jun 28, 2015 at 8:06 AM, Tom Lafleur <[email protected]> wrote:
>>> ...
>>> 
>>> I often use surface mounted .1uf/50v capacitor to replace the axial wire 
>>> lead capacitors used on most of our projects.  I mount them on the back of 
>>> the boards.  Their cheaper and easy to find, and for me they take less time 
>>> to install.
>>> 
>>> Getting use to substitution of parts is just part of the hobby!
>>> 
>>> 
>>> Tom Lafleur
>>> 
>>> ~~ _/) ~~~~ _/) ~~~~ _/) ~~~~ _/) ~~
>>> 
>>> 
>>> 
>>> 
>>> 
>>> On Jun 27, 2015, at 11:04 PM, AG5AT <[email protected]> wrote:
>>> 
>>> I have nevvvver had a problem with Mouser. Their web site clearly shows 
>>> their inventory. If you order something that is not in stock it shows as 
>>> backordered before you complete the order.
>>> 
>>> As far as delivery speed, that depends on how far you live from the Dallas 
>>> area. I have placed orders at 7 PM and get them the next day.  That is 95 
>>> percent of the time.  I am a 5 hour ride up I-30. For me Digikey takes 5 
>>> days.
>>> 
>>> Aug in Arkansas
>> 
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> 
> 
> 
> -- 
> 
> ~~ _/) ~~~~ _/) ~~~~ _/) ~~~~ _/) ~~
> 
> Tom Lafleur
> 
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