Re: [N8VEM-S100:7327] Re: Possible updates to the N8VEM SBC V2 BOM

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 <n8vem...@googlegroups.com> on behalf of Paul Birkel <pbi...@gmail.com>
Reply-To: S100-Post <n8vem...@googlegroups.com>
Date: Sunday, June 28, 2015 at 8:10 AM
To: S100-Post <n8vem...@googlegroups.com>
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 <laf...@lafleur.us> 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 <atre...@sbcglobal.net> 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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