<html>
<head>
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
</head>
<body text="#000000" bgcolor="#FFFFFF">
$15 PCB..... pumpkin carver<br>
<br>
<br>
<a class="moz-txt-link-freetext" href="http://www.learnmorsecode.com/help/cwmosfetb4.jpg">http://www.learnmorsecode.com/help/cwmosfetb4.jpg</a><br>
<br>
<a class="moz-txt-link-freetext" href="http://www.learnmorsecode.com/help/cwmosfetb3.jpg">http://www.learnmorsecode.com/help/cwmosfetb3.jpg</a><br>
<br>
<a class="moz-txt-link-freetext" href="http://www.learnmorsecode.com/help/cwpmosfet.html">http://www.learnmorsecode.com/help/cwpmosfet.html</a><br>
<br>
Probably not used by NASA<br>
<br>
<br>
<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 03/03/2016 11:08 AM, Sarah Thompson
wrote:<br>
</div>
<blockquote
cite="mid:CACVQNWXyDCC4wSrxE_K-9jDUrqQ1-5tD=z78sku+sWPMcVqLOA@mail.gmail.com"
type="cite">
<div dir="ltr">Until a month ago, I *did* work for NASA. We sent
nearly all of our boards out for fabrication. I think there was
a milling machine somewhere at Ames that could make boards, but
to my knowledge nobody ever used it. It would only ever have
been used for prototyping anyway since boards made that way
don't meet flight standards.
<div><br>
</div>
<div>I probably designed roughly 12 or 15 boards in the time I
was EEing there -- quite a few prototypes actually went to OSH
Park. For-real flight boards typically went to the high-end
board fab houses around Silicon Valley, who do a fantastic job
but REALLY AREN'T CHEAP.</div>
<div><br>
</div>
<div>Sarah</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Thu, Mar 3, 2016 at 1:47 AM, Roman
Sowa <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:modular@go2.pl" target="_blank">modular@go2.pl</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">An entry
level milling PCB router from LPKF cost more than 200
differnet prototype boards per year for at least 10 years.
Can't remember actual quoted price but I remember that
calculation I made back then.<br>
And that's 200 PCBs ordered in reputable 24-hours service
fab.<br>
<br>
So unless you are not planing to make PCB making service to
the public it's not worth buying that. Unless you work for
NASA ;)<br>
<br>
And I think laser ones is 10 times more expensive, but I
never bothered to ask.<br>
OTOH there are many PCB makers now from kickstarters and
such, they go for much lower price but don't know anything
about their performance.<br>
<br>
When I need it the same day, there's toner transfer and
etching. Otherwise I simply order top-notch quality PCB for
$40 and have it on my desk next week. No chamicals, no glass
dust in my lungs, no big investment.<br>
<br>
Roman<br>
<br>
W dniu 2016-03-03 o 00:37, Chris Juried pisze:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex"><span
class="">
I would love to get my hands on a laser cuter for
prototyping. Any idea<br>
what these are running, on the entry level machines?<br>
<br>
</span>
Best,<br>
<br>
Chris<br>
<a moz-do-not-send="true"
href="http://www.JuriedEngineering.com" rel="noreferrer"
target="_blank">http://www.JuriedEngineering.com</a><br>
<br>
<br>
On Wed, Mar 2, 2016 at 6:11 PM, john slee<span
class=""><br>
<<a moz-do-not-send="true"
href="mailto:indigoid@oldcorollas.org" target="_blank">indigoid@oldcorollas.org</a>>
wrote:<br>
<br>
I like the straight-to-PCB approach. Also if you're
likely to need a<br>
rev2 anyway, you can use some of the spare space on
the rev1 PCB to<br>
validate any new part footprints you made, related
or not :-)<br>
<br>
The world we live in now, where magical websites
(or, as is more<br>
likely in my case, the laser-cutter at the local
hackerspace) very<br>
accurately turn our design mistakes into reality and
pop them in the<br>
post for $15... It's pretty amazing, no?<br>
<br>
John<br>
<br>
On 3 March 2016 at 09:59, Kylee Kennedy <<a
moz-do-not-send="true"
href="mailto:kmkennedy@gmail.com" target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:kmkennedy@gmail.com">kmkennedy@gmail.com</a></a><br>
</span><span class="">
<a class="moz-txt-link-rfc2396E" href="javascript:return"><javascript:return></a>> wrote:<br>
<br>
A few of the larger eurorack manufacturers I've
talk to do not<br>
use Spice or much of any sim software. It's so
affordable and<br>
quick to just have some small pcbs made these
days they commit<br>
ideas to hardware and test there. Thanks to
OSHpark!<br>
<br>
Learn some CAD software and start making stuff.<br>
Kylee<br>
<br>
<br>
On Wednesday, March 2, 2016, Sarah Thompson <<a
moz-do-not-send="true" href="mailto:plodger@gmail.com"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:plodger@gmail.com">plodger@gmail.com</a></a><br>
</span>
<div>
<div class="h5">
<a class="moz-txt-link-rfc2396E" href="javascript:return"><javascript:return></a>> wrote:<br>
<br>
One of the most useful things about adding
LTSPICE or some<br>
other simulator to learning electronics is
it lets you try<br>
lots of things really quickly. Most of
them actually will<br>
work just fine in physical hardware, but
the exceptions are<br>
a really important learning experience in
and of themselves<br>
-- I've seen that light go on in the eyes
of younger<br>
engineers that I've mentored. There tends
to be a culture<br>
these days that has it that circuit design
is everything and<br>
PCB layout is a (relatively) menial task.
That attitude<br>
doesn't last long when you can't get a
10MHz clock from one<br>
side of a board to the other because you
tried to send it<br>
across a break in the ground plane. At
audio frequencies we<br>
can get away with all manner of murder,
which is why<br>
everyone should try RF at least once! :-)<br>
<br>
Sarah<br>
<br>
On Wed, Mar 2, 2016 at 6:41 AM, BrightBoy<br>
<<a moz-do-not-send="true"
href="mailto:jdec@mindspring.com" target="_blank">jdec@mindspring.com</a>>
wrote:<br>
<br>
Don't forget the classic tome,
"Musical Applications of<br>
Microprocessors"<br>
by Hal Chamberlin.<br>
<br>
Contents can be seen here:<br>
<br>
<a moz-do-not-send="true"
href="http://www.mindspring.com/%7Ejdec/book/MAM.jpg"
rel="noreferrer" target="_blank">http://www.mindspring.com/~jdec/book/MAM.jpg</a><br>
<br>
It's a perfect blend of analog,
digital and<br>
analog/digital hybrid synth design.<br>
<br>
I have the last remaining supply of
the hardcover 2nd<br>
edition. All copies<br>
are new-old-stock (new, mint and
un-read) straight from<br>
the Sam's/Hayden<br>
shipping boxes.<br>
<br>
Price is $52 USD shipped in the USA
and $71 USD shipped<br>
to most worldwide<br>
destinations.<br>
<br>
Email me PRIVATELY if anyone is
interested in picking up<br>
this holy grail<br>
reference book.<br>
<br>
Jeff<br>
<br>
-----Original Message-----<br>
>From: Karsten Schmidt <<a
moz-do-not-send="true" href="mailto:info@toxi.co.uk"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:info@toxi.co.uk">info@toxi.co.uk</a></a>><br>
>Sent: Mar 1, 2016 2:23 PM<br>
>To: Oakley Sound <<a
moz-do-not-send="true"
href="mailto:oakleylist@btinternet.com"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:oakleylist@btinternet.com">oakleylist@btinternet.com</a></a>><br>
>Cc: Synth DIY <<a
moz-do-not-send="true"
href="mailto:synth-diy@dropmix.xs4all.nl"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:synth-diy@dropmix.xs4all.nl">synth-diy@dropmix.xs4all.nl</a></a>><br>
>Subject: Re: [sdiy] Audio circuits
and basic electronics knowledge recommendation.<br>
><br>
>There's a great collection of
beginner links on<br>
Muffwiggler:<br>
><a moz-do-not-send="true"
href="https://www.muffwiggler.com/forum/viewtopic.php?t=2795"
rel="noreferrer" target="_blank">https://www.muffwiggler.com/forum/viewtopic.php?t=2795</a><br>
><br>
>On 1 March 2016 at 09:02, Oakley
Sound<br>
<<a moz-do-not-send="true"
href="mailto:oakleylist@btinternet.com"
target="_blank">oakleylist@btinternet.com</a>>
wrote:<br>
>> This set of articles written
by Rod Elliott are a<br>
really good read:<br>
>><br>
>> <a moz-do-not-send="true"
href="http://sound.westhost.com/articles.htm"
rel="noreferrer" target="_blank">http://sound.westhost.com/articles.htm</a><br>
>><br>
>> The beginners' stuff is
about two thirds of the way<br>
down the page.<br>
>><br>
>> Tony<br>
>><br>
>> <a moz-do-not-send="true"
href="http://www.oakleysound.com/" rel="noreferrer"
target="_blank">http://www.oakleysound.com/</a><br>
>><br>
>>
_______________________________________________<br>
>> Synth-diy mailing list<br>
>> <a moz-do-not-send="true"
href="mailto:Synth-diy@dropmix.xs4all.nl"
target="_blank">Synth-diy@dropmix.xs4all.nl</a><br>
>> <a moz-do-not-send="true"
href="http://dropmix.xs4all.nl/mailman/listinfo/synth-diy"
rel="noreferrer" target="_blank">http://dropmix.xs4all.nl/mailman/listinfo/synth-diy</a><br>
><br>
><br>
><br>
>--<br>
>Karsten Schmidt<br>
><a moz-do-not-send="true"
href="http://postspectacular.com" rel="noreferrer"
target="_blank">http://postspectacular.com</a> | <a
moz-do-not-send="true" href="http://thi.ng"
rel="noreferrer" target="_blank"><a class="moz-txt-link-freetext" href="http://thi.ng">http://thi.ng</a></a> |<br>
<a moz-do-not-send="true"
href="http://toxiclibs.org" rel="noreferrer"
target="_blank">http://toxiclibs.org</a><br>
>_______________________________________________<br>
>Synth-diy mailing list<br>
><a moz-do-not-send="true"
href="mailto:Synth-diy@dropmix.xs4all.nl"
target="_blank">Synth-diy@dropmix.xs4all.nl</a><br>
><a moz-do-not-send="true"
href="http://dropmix.xs4all.nl/mailman/listinfo/synth-diy"
rel="noreferrer" target="_blank">http://dropmix.xs4all.nl/mailman/listinfo/synth-diy</a><br>
<br>
_______________________________________________<br>
Synth-diy mailing list<br>
<a moz-do-not-send="true"
href="mailto:Synth-diy@dropmix.xs4all.nl"
target="_blank">Synth-diy@dropmix.xs4all.nl</a><br>
<a moz-do-not-send="true"
href="http://dropmix.xs4all.nl/mailman/listinfo/synth-diy"
rel="noreferrer" target="_blank">http://dropmix.xs4all.nl/mailman/listinfo/synth-diy</a><br>
<br>
<br>
<br>
<br>
--<br>
[s]<br>
<br>
<br>
_______________________________________________<br>
Synth-diy mailing list<br>
</div>
</div>
<a moz-do-not-send="true"
href="mailto:Synth-diy@dropmix.xs4all.nl"
target="_blank">Synth-diy@dropmix.xs4all.nl</a>
<a class="moz-txt-link-rfc2396E" href="javascript:return"><javascript:return></a><span class=""><br>
<a moz-do-not-send="true"
href="http://dropmix.xs4all.nl/mailman/listinfo/synth-diy"
rel="noreferrer" target="_blank">http://dropmix.xs4all.nl/mailman/listinfo/synth-diy</a><br>
<br>
<br>
_______________________________________________<br>
Synth-diy mailing list<br>
</span>
<a moz-do-not-send="true"
href="mailto:Synth-diy@dropmix.xs4all.nl"
target="_blank">Synth-diy@dropmix.xs4all.nl</a>
<a class="moz-txt-link-rfc2396E" href="javascript:return"><javascript:return></a><span class=""><br>
<a moz-do-not-send="true"
href="http://dropmix.xs4all.nl/mailman/listinfo/synth-diy"
rel="noreferrer" target="_blank">http://dropmix.xs4all.nl/mailman/listinfo/synth-diy</a><br>
<br>
<br>
<br>
_______________________________________________<br>
Synth-diy mailing list<br>
<a moz-do-not-send="true"
href="mailto:Synth-diy@dropmix.xs4all.nl"
target="_blank">Synth-diy@dropmix.xs4all.nl</a><br>
<a moz-do-not-send="true"
href="http://dropmix.xs4all.nl/mailman/listinfo/synth-diy"
rel="noreferrer" target="_blank">http://dropmix.xs4all.nl/mailman/listinfo/synth-diy</a><br>
<br>
</span></blockquote>
<div class="HOEnZb">
<div class="h5">
_______________________________________________<br>
Synth-diy mailing list<br>
<a moz-do-not-send="true"
href="mailto:Synth-diy@dropmix.xs4all.nl"
target="_blank">Synth-diy@dropmix.xs4all.nl</a><br>
<a moz-do-not-send="true"
href="http://dropmix.xs4all.nl/mailman/listinfo/synth-diy"
rel="noreferrer" target="_blank">http://dropmix.xs4all.nl/mailman/listinfo/synth-diy</a><br>
</div>
</div>
</blockquote>
</div>
<br>
<br clear="all">
<div><br>
</div>
-- <br>
<div class="gmail_signature">[s]</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
Synth-diy mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Synth-diy@dropmix.xs4all.nl">Synth-diy@dropmix.xs4all.nl</a>
<a class="moz-txt-link-freetext" href="http://dropmix.xs4all.nl/mailman/listinfo/synth-diy">http://dropmix.xs4all.nl/mailman/listinfo/synth-diy</a>
</pre>
</blockquote>
<br>
</body>
</html>