Hi,
Local electronics store sells BD249 and BD250 with TOP-3 packages. The
datasheets I found on the web say BD249 is SOT-93. I can't find
footprints for either pkg in PCB or gedasymbols.org; does anyone know an
equivalent footprint I could use? If there is none, is there a standard
source to acqu
On Sat, 3 Mar 2007, Ben Jackson wrote:
>On Sat, Mar 03, 2007 at 10:25:36PM -0500, DJ Delorie wrote:
>>
>> While on a trip to visit relatives, I got some time to tinker with
>> PCB. I found time to fix/tweak/add many things...
>
>Sounds like what happens when *I* "go on vacation". Nice job.
>
>
On Sat, Mar 03, 2007 at 10:25:36PM -0500, DJ Delorie wrote:
>
> While on a trip to visit relatives, I got some time to tinker with
> PCB. I found time to fix/tweak/add many things...
Sounds like what happens when *I* "go on vacation". Nice job.
> Added "lock names" setting:
> Added "only name
John Griessen wrote:
Dan McMahill wrote:
Getting back to the critical short term question, are there
interested students and mentors?
After reading the FAQs about google's program, I can probably commit
enough time
to do some good work if I get a stipend, since my rent is low...
If inter
While on a trip to visit relatives, I got some time to tinker with
PCB. I found time to fix/tweak/add many things...
Made flags type big enough to hold PCB flags.
Added hash table for parameter lookup in action.c
Moved thindraw code out of lesstif hid.
Added "thin draw polygons" flag to tople
> I need to switch <1A @ 24VAC loads,
Been there. http://www.delorie.com/house/furnace/
I use an opto-triac and an alternistor. Alternistors handle the two
polarities with different silicon, which helps with inductive loads,
which is what I've got. No additional discretes are required, except
A couple of people had asked what Open Source ERP Systems
where around. http://freshmeat.net list 48 of them.
SourceForge has many others.
I had played the most with http://www.compiere.org/ but found it
to be week in the area that I was most interested in, material management.
Linux support f
> Did you discover the bridges by close optical inspection, or during
> test runs of the board?
Optical. I haven't powered the board up yet. I use both the mag
visors and the microscope to check them; the bridges are pretty easy
to see.
___
geda-use
On Saturday 03 March 2007 16:38, Dave McGuire wrote:
>I've just started up a new mailing list, [EMAIL PROTECTED],
> which is intended to support discussions regarding metrology (the
> science of measurement) and metrology-related equipment, with a focus
> on electronics. Think passive A
On Sat, Mar 03, 2007 at 11:57:36PM +, [EMAIL PROTECTED] wrote:
>
> Anyway, I was trying to get the compiler to generate 2 versions of
> an initialized array: ROM, and RAM.
Declaring something const might do it, although some architectures like
AVR address ROM and RAM differently, so you have
Thanks. I threw the question to the group because I know there's plenty of
knowledgable people reading willing to answer it.
Anyway, I was trying to get the compiler to generate 2 versions of an
initialized array: ROM, and RAM. The processor I am using has more ROM than
RAM, so
placing the
Hi folks. I have permission from Ales to post this announcement
here.
I've just started up a new mailing list, [EMAIL PROTECTED],
which is intended to support discussions regarding metrology (the
science of measurement) and metrology-related equipment, with a focus
on electronics.
.> On Sat, 3 Mar 2007 10:34:35 -0500
>
> Randall Nortman <[EMAIL PROTECTED]> wrote:
> > Is there any reason to prefer the integrated
> > MOSFET SSRs?
I'm starting to use the modular OAC3 style SSR's made by a number of mfgrs. I
bought a bunch on Ebay quite cheap. They are, of course, bigger. Abt
Dan McMahill wrote:
Getting back to the critical short term question, are there interested
students and mentors?
After reading the FAQs about google's program, I can probably commit enough time
to do some good work if I get a stipend, since my rent is low...
If interested, I'll write a stude
John Coppens wrote:
Though I can't image the reason to put this question on this forum,
Many of the systems made with gEDA tools have processors, and some of those are
microcontrollers that GCC compiles C code. It's germain to coding gEDA tools
and the systems developed with them too.
I fi
On Sat, 3 Mar 2007 10:34:35 -0500
Randall Nortman <[EMAIL PROTECTED]> wrote:
> Is there any reason to prefer the integrated
> MOSFET SSRs?
The biggest advantage of FET SSRs is the possibility to switch off when
you want. Simple Thyrister/Triacs mostly stay on for the rest of the
cycle.
At 24V, y
I need to switch <1A @ 24VAC loads, and I've been looking at various
DIP-package SSRs. The cheapest ones are MOSFET-based with no
zero-cross circuit. Triac-based SSRs with zero-cross circuits are
more expensive. But comparing this to building my own out of an
opto-triac (for isolation) and a dis
On Sat, 03 Mar 2007 13:31:06 +0100
Philipp Klaus Krause <[EMAIL PROTECTED]> wrote:
> "static" has two meanings: The one you mentioned for variables declared
> inside a function, the one Ben Jackson mentioned for variables declared
> outside a function.
Isn't internet great? Collaborative learning
I too succesfully built my own design of a reflow oven, and it works like a
charm...
http://web.interware.hu/lekovacs/reflow_oven/index.html
--
Levente
http://web.interware.hu/lekovacs
___
geda-user mailing list
geda-user@moria.seul.org
http://www.
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
John Coppens schrieb:
> 'Static' is normally reserved to specify the data should never be
> destroyed by the compiler if the compiler thinks it's not necessary any
> more (eg. to make data 'static', i.e. available between function calls to
> the same
Dave N6NZ wrote:
Seeing DJ's hot plate photo brought to mind a link I once saw, where a
guy built a home-brew SMT hot plate. I can't find the link, but as I
recall, he used a few low-ohm high-watt power resistors epoxied to a
piece of aluminum sheet. He drove it with a 0-30V bench supply and
21 matches
Mail list logo
