Re: gEDA-user: smd challenge board status

2006-11-07 Thread DJ Delorie
> Was looking at the 01005 caps. I was wondering if that as small as > they get, or can they get smaller? Reflow soldering and robotics > would odviously be needed. Just Curious. I don't know of anything smaller, and certainly nothing at digikey or mouser is. As for reflow and robotics, they e

Re: gEDA-user: smd challenge board status

2006-11-07 Thread Lares Moreau
On Fri, 27 Oct 2006 13:08:04 -0400 DJ Delorie <[EMAIL PROTECTED]> wrote: > > 29 remain unclaimed. If you've mailed me a check, please email me > [not the list] and let me know how many to reserve for you so I don't > run out too soon. Also, if you want to pick one up at the next > Freedaug meet

Re: gEDA-user: smd challenge board status

2006-11-04 Thread John Doty
On Nov 1, 2006, at 4:52 PM, Steve Meier wrote: John has it correct. Well, kinda. I really shouldn't try to explain physics before morning tea ;-) I should have said "a vacant negative energy state of a negatively charged particle has the same dynamics as an occupied positive energy st

Re: gEDA-user: smd challenge board status

2006-11-01 Thread Steve Meier
Positrons are easier to detect then 01005 capacitors. On Wed, 2006-11-01 at 10:59 -0500, DJ Delorie wrote: > > The discovery of the Positron. Seems a bit far removed from EDA, though... > > Positrons are only slightly smaller than 01005 capacitors. > > >

Re: gEDA-user: smd challenge board status

2006-11-01 Thread Steve Meier
Bill, Thanks for the reference. Steve M. On Wed, 2006-11-01 at 16:40 +0100, Bill Sloman wrote: > At 05:25 1-11-2006, you wrote: > >I think I will drop into this group a brief passage fom Heisenberg's > >"Quantum Theory" translated into English in 1930. > > > >"Dirac has set up a wave equation wh

Re: gEDA-user: smd challenge board status

2006-11-01 Thread DJ Delorie
> The discovery of the Positron. Seems a bit far removed from EDA, though... Positrons are only slightly smaller than 01005 capacitors. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user

Re: gEDA-user: smd challenge board status

2006-11-01 Thread Steve Meier
John has it correct. It is facinating reading this text. A modern quantum physics book presents the theory as cold hard fact... but back in 1930 when it was brand new Heisenberg was presenting it in an almost appoligetic and not quite sure manner. Steve M. John Doty wrote: > > On Oct 31, 2006,

Re: gEDA-user: smd challenge board status

2006-11-01 Thread Bill Sloman
At 05:25 1-11-2006, you wrote: I think I will drop into this group a brief passage fom Heisenberg's "Quantum Theory" translated into English in 1930. "Dirac has set up a wave equation which is valid for one electron and is invarient under the Lorentian transformation. It fulfills all requirement

Re: gEDA-user: smd challenge board status

2006-11-01 Thread John Doty
On Oct 31, 2006, at 9:25 PM, Steve Meier wrote: I think I will drop into this group a brief passage fom Heisenberg's "Quantum Theory" translated into English in 1930. "Dirac has set up a wave equation which is valid for one electron and is invarient under the Lorentian transformation. It fu

Re: gEDA-user: smd challenge board status

2006-11-01 Thread Evan Lavelle
Steve Meier wrote: So what was wrong? What occured that proved both theories were correct? The discovery of the Positron. Seems a bit far removed from EDA, though... ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/ma

Re: gEDA-user: smd challenge board status

2006-11-01 Thread Steve Meier
I will give you all a couple of clues.. The equation garbled as it may be is the more complex version of E = M*C^2 Next go see who received the Nobel Prize for Physics in 1936. Steve Meier wrote: >I think I will drop into this group a brief passage fom Heisenberg's "Quantum >Theory" translated

Re: gEDA-user: smd challenge board status

2006-11-01 Thread Bob Paddock
On Tuesday 31 October 2006 23:25, Steve Meier wrote: > I think I will drop into this group a brief passage fom Heisenberg's > "Quantum Theory" translated into English in 1930. > Here spontaneuos transitions may occure to the states of negative energy; as > these have never been observed Perhaps.

Re: gEDA-user: smd challenge board status

2006-10-31 Thread Steve Meier
I think I will drop into this group a brief passage fom Heisenberg's "Quantum Theory" translated into English in 1930. "Dirac has set up a wave equation which is valid for one electron and is invarient under the Lorentian transformation. It fulfills all requirements of the quantum theory, and is

Re: gEDA-user: smd challenge board status

2006-10-31 Thread Steve Meier
I think I will drop into this group a brief passage fom Heisenberg's "Quantum Theory" translated into English in 1930. "Dirac has set up a wave equation which is valid for one electron and is invarient under the Lorentian transformation. It fulfills all requirements of the quantum theory, and is a

Re: gEDA-user: smd challenge board status

2006-10-31 Thread Steve Meier
My tech got his together other then those 01005's which were apperently used to fill a couple of pico black holes. Steve M. Bob Paddock wrote: >On Tuesday 31 October 2006 13:25, Mark Rages wrote: > >>>And I'm interested in hearing your initial reactions, as well as any >>>success stories :-) >>

Re: gEDA-user: smd challenge board status

2006-10-31 Thread John Griessen
I suppose so... I ripped mine right open. The lands for the 01 05 's are verry teeny I'll maybe sharpen my soldering iron I need some fine solder wick. Shopping to do... John G Mark Rages wrote: And I'm interested in hearing your initial reactions, as well as any success s

Re: gEDA-user: smd challenge board status

2006-10-31 Thread Bob Paddock
On Tuesday 31 October 2006 13:25, Mark Rages wrote: > > And I'm interested in hearing your initial reactions, as well as any > > success stories :-) > > Am I the only one afraid to open the envelope? It just sits on my > workbench, mocking me. I just opened my ten pack. Ten individual kits of p

Re: gEDA-user: smd challenge board status

2006-10-31 Thread Steve Meier
Be very very afriad of those 01005 capacitors... They seem to be virtual quantum devices... either you know where they are or you don't. Seeing as they have very small mass the heisenberg uncertainty principle is working against you in that they are likely to soon be some where else. Steve M. On

Re: gEDA-user: smd challenge board status

2006-10-31 Thread Mark Rages
I sent out a big bunch yesterday; people in the northeast US may get them tomorrow, else you'll start getting them next week. And I'm interested in hearing your initial reactions, as well as any success stories :-) Am I the only one afraid to open the envelope? It just sits on my workbench, mo

gEDA-user: smd challenge board status

2006-10-27 Thread DJ Delorie
29 remain unclaimed. If you've mailed me a check, please email me [not the list] and let me know how many to reserve for you so I don't run out too soon. Also, if you want to pick one up at the next Freedaug meeting, email me for that too. I sent out a big bunch yesterday; people in the northea

Re: gEDA-user: smd challenge board status - last step!

2006-10-21 Thread DJ Delorie
> A Hong Kong/Chinese board fabber, YukShing Circuits, sent me some > FR-1 Not sure I want to hand-make that many precision boards. If I were to product-ize it, I'd go with a larger single-sided board. You still want the solder mask, I think, although it's hard to squeeze it between the IC pins.

Re: gEDA-user: smd challenge board status - last step!

2006-10-21 Thread John Griessen
DJ Delorie wrote: I'll give some feed back to that. I was planing on ordering ten. Not that I'm that bad at soldering, but some people at work could use some practice. Note that ten packs aren't cut up; you'll need a scroll saw or other pcb cutter with a narrow kerf. I use a #2 blade. I'm g

Re: gEDA-user: smd challenge board status - last step!

2006-10-21 Thread DJ Delorie
> > FYI: They still throb too fast to see (30Hz). Those caps are not very > > precise. > >U? What's their tolerance spec? They're X5R's, rated at 10%. That board is going about 700Hz+, so they're 5% off, but I've seen them up to 20% off when measuring them with my multimeter, not

Re: gEDA-user: smd challenge board status - last step!

2006-10-21 Thread John Griessen
Dave McGuire wrote: On Oct 20, 2006, at 8:26 PM, DJ Delorie wrote: I wonder if you can hand-solder SOJ if you start by putting solder paste on the pads, so that you use the tip to reflow the paste? I've done this with a hot-air pencil. I find it a bit easier than doing SOJs with an iron

Re: gEDA-user: smd challenge board status - last step!

2006-10-20 Thread Dave McGuire
On Oct 21, 2006, at 12:04 AM, DJ Delorie wrote: Hey! It works! And no injection locking either. Schweet! Yeah, that was definitely a pleasant surprise. Not that I can explain it, of course. But now I have to reconfigure my latest board to use the twin slow oscillators, so I can see the

Re: gEDA-user: smd challenge board status - last step!

2006-10-20 Thread DJ Delorie
> > Hey! It works! And no injection locking either. > >Schweet! Yeah, that was definitely a pleasant surprise. Not that I can explain it, of course. But now I have to reconfigure my latest board to use the twin slow oscillators, so I can see the LEDs throb. That means moving one of the

Re: gEDA-user: smd challenge board status - last step!

2006-10-20 Thread Dave McGuire
On Oct 20, 2006, at 10:26 PM, DJ Delorie wrote: Won't two AA's power this rather than messing with a 9V and 7805? Hey! It works! And no injection locking either. Schweet! -Dave -- Dave McGuire Cape Coral, FL ___ geda-user mailing li

Re: gEDA-user: smd challenge board status - last step!

2006-10-20 Thread DJ Delorie
> Won't two AA's power this rather than messing with a 9V and 7805? Hey! It works! And no injection locking either. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user

Re: gEDA-user: smd challenge board status - last step!

2006-10-20 Thread DJ Delorie
> I'll give some feed back to that. I was planing on ordering ten. > Not that I'm that bad at soldering, but some people at work could use > some practice. Note that ten packs aren't cut up; you'll need a scroll saw or other pcb cutter with a narrow kerf. I use a #2 blade. I'm going to cut up t

Re: gEDA-user: smd challenge board status - last step!

2006-10-20 Thread Bob Paddock
On Friday 20 October 2006 20:45, DJ Delorie wrote: > I haven't gotten any feedback about the "limit two per person" either. I'll give some feed back to that. I was planing on ordering ten. Not that I'm that bad at soldering, but some people at work could use some practice. Also on the $0.37 surc

Re: gEDA-user: smd challenge board status - last step!

2006-10-20 Thread DJ Delorie
> In instructions.pdf, Quantities in the table don't match the board or the > resdef numbers. > C2-5 Qty 2 -> should be 4 There are two oscillator configurations, so the schematic has two places for caps for each oscillator. You only populate one each. This is noted in the instructions. I add

Re: gEDA-user: smd challenge board status - last step!

2006-10-20 Thread Lares Moreau
On Fri, 20 Oct 2006 14:01:23 -0400 DJ Delorie <[EMAIL PROTECTED]> wrote: > > One step left before I start taking orders. Almost there! > > I've pretty much finished the web page and instructions for the > challenge board project, and would like to request a review. > Specifically, the link mark

Re: gEDA-user: smd challenge board status - last step!

2006-10-20 Thread Dave McGuire
On Oct 20, 2006, at 8:26 PM, DJ Delorie wrote: I wonder if you can hand-solder SOJ if you start by putting solder paste on the pads, so that you use the tip to reflow the paste? I've done this with a hot-air pencil. I find it a bit easier than doing SOJs with an iron and wire solder. I've

Re: gEDA-user: smd challenge board status - last step!

2006-10-20 Thread DJ Delorie
> yeah, I've never liked soldering SOJ's. Although I'd rather do > those than QFN's. I'd have preferred tsops, but I can do trace-between-pads with SOJ, and I was kinda limited given the part I needed (5v SRAM). I wonder if you can hand-solder SOJ if you start by putting solder paste on the pad

Re: gEDA-user: smd challenge board status - last step!

2006-10-20 Thread Dan McMahill
DJ Delorie wrote: I've built three so far (two proto, one final). I'm going to use one or two more finals to try out my new hot plate before I start working on the expansion board project (the SOJs almost require reflow). So, I can't wait to get rid of them all ;-) (and I'm not going smaller t

Re: gEDA-user: smd challenge board status - last step!

2006-10-20 Thread DJ Delorie
> 2nd paragraph. "There's all sorts of things" should probably be > "There are all sorts of things". Fixed. > "from the time the parts get here" should maybe "from the time the > parts get there". I meant *my house*. From the time the parts leave Digikey to the time you finish assembling your

Re: gEDA-user: smd challenge board status - last step!

2006-10-20 Thread Dan McMahill
DJ Delorie wrote: One step left before I start taking orders. Almost there! I've pretty much finished the web page and instructions for the challenge board project, and would like to request a review. Specifically, the link marked "instruction sheet" is the [double sided] page I'm including wit

gEDA-user: smd challenge board status - last step!

2006-10-20 Thread DJ Delorie
One step left before I start taking orders. Almost there! I've pretty much finished the web page and instructions for the challenge board project, and would like to request a review. Specifically, the link marked "instruction sheet" is the [double sided] page I'm including with the mailed kits.