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Martin Klingensmith | 1 Oct 01:09

[EE] keepout / restrict / stop / other

Forgive my ignorance, but which layer in eagle would I draw in to
prevent the solder mask from entering?

Thank you,
Martin K
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Martin Klingensmith | 1 Oct 01:16

Re: [BUY] Recommendations for an old cheap 802.11 card?

James,
Try Freecycle.

With that being said, I used a Orinoco Wavelan card for 3 years and it
worked fine. Should be cheaper than dirt.

--
Martin K

James Newton wrote:
> My US Robotics PCMCIA 802.11 22Mpbs card for the laptop is going slowly
> south. It now only works if I pull the case in certain directions and don't
> shake it to much after it comes up.
> 
> I have very little money to spend on this (blown head gasket, hard drive
> crash, homeowners insurance and loss of a consulting job so far this month)
> and I don't need the latest and greatest, just something with about a 40
> foot range and fair speed.
> 
> The laptop has a PCMCIA port on the left and USB in the back, but the USB is
> often in use for other things. 
> 
> Ebay and amazon have produced a bewildering array of models to choose from.
> Any pointers to what has worked for you and what to avoid would be very
> appreciated.
> 
> --
> James Newton
> 
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Timothy J. Weber | 1 Oct 02:03
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Re: [EE] keepout / restrict / stop / other

Martin Klingensmith wrote:
> Forgive my ignorance, but which layer in eagle would I draw in to
> prevent the solder mask from entering?

See the "LAYER" help topic - I end up looking at it quite often to 
refresh my memory.

I think you want tStop and bStop.
-- 
Timothy J. Weber
http://timothyweber.org
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David VanHorn | 1 Oct 02:41
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Re: [EE] Neon lamps

On 9/30/07, Peter P. <plpeter2006 <at> yahoo.com> wrote:
>
> > "No web site found at this address"..
>
> That site allows no 'inside' bookmarks. How clever, that must have been the
> reason why I had to search for it so much. Verbal instructions:

It's worse that that.. I'm on debian with epiphany web browser, the
nav bar dosen't display at all.. :-P

Anyway, I don't know whose neons these are, so I'm assuming 0.5mA,
which works out nicely to 33k, measuring the peak voltage across the
33k during the discharge.

So all those schematics I saw over the years, they were either wrong,
or assuming internal resistors in the lamps, yet I'm SURE I have seen
magazine articles with them where there was clearly no resistor.  Then
again, it wouldn't be the first magazine project I've seen that had
serious design issues.
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Dr Skip | 1 Oct 03:01
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Re: [EE] XP PRO - virtualization, was - Is hard drive going bad??

Ah, I didn't know they made that free. I'm not really familiar with the
company, but did they change business models? I can understand selling your
product for revenue, and giving the player away as a hook, but 'server' sounds
pretty core. If free, where are they taking it? Or is it just free for a
limited time...

Thanks.

Bob Blick wrote:
> You forgot about VMware Server, which is free beer, awesome, and widely
> used. The player is just a toy.
> 
> Server can create images and also run them, from and to either platform
> or both.
> 
> Cheerful regards,
> 
> Bob
> 

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Martin Klingensmith | 1 Oct 03:34

Re: [OT] Imprinted Calendar (or other) Ideas

Seen Britney lately?
--
MK

Bob Axtell wrote:
> Lindy Mayfield wrote:
>> Kittens.  Cute, furry, playful kittens.
>>
>>   
> How about 12 pix of Britney Spears?
> 
> I might become a client if you did....
> 
> --Bob
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Bob Blick | 1 Oct 04:11
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Favicon

Re: [EE] XP PRO - virtualization, was - Is hard drive going bad??

Their big money is in "enterprise" products, the control panel stuff,
synchronization between virtual machines so you can do a seamless
transition from one running machine to another, that kind of thing. I
think they figure there is too much free competition for small
deployments, so take user interest (and development interest) away by
providing the free product.

Cheerful regards,

Bob

Dr Skip wrote:
> Ah, I didn't know they made that free. I'm not really familiar with the
> company, but did they change business models? I can understand selling your
> product for revenue, and giving the player away as a hook, but 'server' sounds
> pretty core. If free, where are they taking it? Or is it just free for a
> limited time...
> 
> Thanks.
> 
> Bob Blick wrote:
>> You forgot about VMware Server, which is free beer, awesome, and widely
>> used. The player is just a toy.
>>
>> Server can create images and also run them, from and to either platform
>> or both.
>>
>> Cheerful regards,
>>
>> Bob
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Xiaofan Chen | 1 Oct 04:55
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Re: [EE] XP PRO - virtualization, was - Is hard drive going bad??

On 10/1/07, Bob Blick <bbblick <at> sbcglobal.net> wrote:
> Their big money is in "enterprise" products, the control panel stuff,
> synchronization between virtual machines so you can do a seamless
> transition from one running machine to another, that kind of thing. I
> think they figure there is too much free competition for small
> deployments, so take user interest (and development interest) away by
> providing the free product.
>

http://en.wikipedia.org/wiki/VMware
Apparently EMC profits quite a lot from the IPO.

And now Citrix wants to buy XenSource.
http://www.news.com/8301-10784_3-9760160-7.html
http://www.theregister.co.uk/2007/08/13/citrix_buy_xensource/

And the Linux kernel developers must be a bit scare of XenSource
so that they now include KVM inside the kernel.

By the way, Microsoft Virtual PC is free as well.

Personally I still like multi-boot more (Windows XP + Ubuntu 606+
Ubuntu 704 + Fedora Core 6 +Arch Linux + Open Suse + Cent OS
+ FreeBSD 6.2)  since my PC is not that powerful (2.5 year old AMD3000+
with 1G DDR SDRAM + ATI9800SE AGP with 80G/160G HDD). I mainly
use Ubuntu 606/704 and XP SP2. The others are only for testing purposes.
I used to play with various Linux and now I want to get rid of the two
inactive partitions (Open Suse and Cent OS) and I will not update the
FC6.  I might want to try Vmware on those two partitions (possibly
BeOS/Haiku, I used to have BeOS perosonal edition installed). I have
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Xiaofan Chen | 1 Oct 05:03
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Re: [PIC] Talking PIC's !

On 10/1/07, Robin Abbott <robin.abbott <at> fored.co.uk> wrote:

> Would be interested to know if anyone else has experimented and what results
> might have been obtained. MP3 playback would be much more efficient on
> memory storage but I suspect would be a nightmare on processor load ! I am
> also having trouble finding a good, low component count, audio amp for 5V.
>
> Happy to share source and ideas !

I like the following links.
1) USB sound card with 18F4550 and PIC PWM
http://home.comcast.net/~armag1234/soundcard.html
http://forum.microchip.com/tm.aspx?m=231496

2) PIC based audio player
http://forum.microchip.com/tm.aspx?m=267094

3) Is this possible: dsPIC MP3 decoder/player?
http://forum.microchip.com/tm.aspx?m=166133
http://www.opencircuits.com/Music_Player (with dedicated
decoder, PIC16/18 can play MP3 as well).
http://www.k9spud.com/traxmod/ (wave is not a problem
for dsPIC)

NXP has a nice implemenation of MP3 player using
LPC2148. The new LPC2888 will be even nice.
http://www.nxp.com/acrobat_download/applicationnotes/AN10583_1.pdf

Xiaofan
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William "Chops" Westfield | 1 Oct 05:14
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Re: [EE] Neon lamps


On Sep 30, 2007, at 5:41 PM, David VanHorn wrote:

> So all those schematics I saw over the years, they were either wrong,
> or assuming internal resistors in the lamps, yet I'm SURE I have seen
> magazine articles with them where there was clearly no resistor.

The circuits you're talking about were the pre-LED, pre- 
microcontroller "blink light" circuits, and current limiting  
resistors for the Neon bulbs were somewhat less common than they are  
in todays projects that drive LEDs from a microcontroller with no  
current limiting resistors.  I don't think that should be a BIG  
surprise.  There was no internet in those days to report problems  
with the Neon bulbs after a few hours of operation :-)

On the other hand, you may have problems with aged neon bulbs.  I  
wouldn't have thought that this would be a particular failure mode as  
bulbs got older, but I doubt that there's very much real data on how  
neon bulbs behave after a few decades (who knows HOW old neon bulbs  
you buy these days are.  I know how old the ones in my junkbox are!)

Were there ever any "professional" circuits that relied on the  
negative resistance behavior of neon bulbs?  I don't recall seeing  
anything other than use as indicator lights or "novelty flashers."

BillW
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