Driver to drive?

[Dirk Bruere at Neopax]

Pat Ford wrote:

"martin griffith" <martingriffith@yahoo.co.uk> wrote in message
news:289js05155e8vh020ukn1npej0tvqn9lgt@4ax.com...

On 22 Dec 2004 08:29:28 -0800, in sci.electronics.design
larwe@larwe.com wrote:


Don't be so quick to laugh - this DOES happen. Oftentimes when there is
empty space in a container, the shipping company or an employee of that
company will invest a couple of hundred dollars in random junk to fill
the space and maybe turn a little profit.

I wonder what they send bck to china in the containers? I cant imagine
the chinese need much from the EU or US


martin

Serious error.
All shortcuts have disappeared.
Screen. Mind. Both are blank.


jobs, healthy economy? scrap steel??
Pat

Cash

--
Dirk

The Consensus:-
The political party for the new millenium
http://www.theconsensus.org

 

[Dirk Bruere at Neopax]

John Woodgate wrote:

I read in sci.electronics.design that Dirk Bruere at Neopax
dirk@neopax.com> wrote (in <3304o7F3qn3vmU2@individual.net&gt about
'Horowitz-Hill: Serious scholarly query', on Thu, 23 Dec 2004:


Well, STR relies on the *axiom* that physics is the same for all
inertial frames.


But is the axiom itself science or philosophy? It can be considered
self-evident, on the grounds that different inertial frames aren't
distinguishable by, say, colour or odour.

I'm not sure that it is self evident.
Certainly the CMB provides a universal rest frame (unless I've missed something).

--
Dirk

The Consensus:-
The political party for the new millenium
http://www.theconsensus.org

 

[Dirk Bruere at Neopax]

Guy Macon wrote:

Winfield Hill wrote:


All I can say for our book is we worked hard on it, and it has to stand
on its own. We're making major modifications for the third edition, and
are happy to hear suggestions,


Three comments:

Please make sure that the binding is as good as the last edition.
I have seen other technical books cheapen up the binding, and AoE
is a reference that I use a *lot*.

Give extra care to the list of commonly-used "jellybean" components.
At least one major electronics manufacturer uses it as a checklist
item for design reviews; you can use other parts but you have to
have a reason why. You might even want to think about posting it
in sci.electronics.design and asking for comments.

I think it should be Horowitz and Hill on even numbered editions
and Hill and Horowitz on odd numbered editions.

And maybe a CD with some interesting freebies

--
Dirk

The Consensus:-
The political party for the new millenium
http://www.theconsensus.org

 

[John Woodgate]

I read in sci.electronics.design that Dirk Bruere at Neopax
<dirk@neopax.com> wrote (in <330cclF3qfgbrU3@individual.net&gt about
'Horowitz-Hill: Serious scholarly query', on Thu, 23 Dec 2004:

I'm not sure that it is self evident.
Certainly the CMB provides a universal rest frame (unless I've missed
something).

You missed explaining the abbreviation CMB.
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

 

[Jim Yanik]

Guy Macon <_see.web.page_@_www.guymacon.com_> wrote in
news:10slrl4h5mcufa3@corp.supernews.com:

Other than speed, is there any difference between a 465B and
a 475/475A that I should know about? I am looking for a
replacement but I want all or nearly all of the knobs to be
the same.

Different input sensitivities on the vertical channels(knobs will not be
same as 465,IIRC),and 475 and /A have higher bandwidth.

IIRC,465 had 5mv V/div reading,and 475 had 2mv V/div

--
Jim Yanik
jyanik-at-kua.net

 

[Charlie Gibbs]

In article <1103794613.394656@cswreg.cos.agilent.com>,
Ian_Buckner_not_@agilent.com (Ian) writes:

"John Woodgate" <jmw@jmwa.demon.contraspam.yuk> wrote in message
news:Ab3lAuIBNbyBFw+f@jmwa.demon.co.uk...

I read in sci.electronics.design that Nicholas O. Lindan <see@sig.com
wrote (in <18iyd.8968$yK.589@newsread3.news.atl.earthlink.net&gt about
'Neato chaotic equations for analog computers to display?', on Wed, 22
Dec 2004:

An understanding of the shadowing dynamics relies on
the mathematical notion of hyperbolicity.

Three gonads? (;-)

Would that be the sign outside a porn shop?
;-)

You have a funny accent.

--
/~\ cgibbs@kltpzyxm.invalid (Charlie Gibbs)
\ / I'm really at ac.dekanfrus if you read it the right way.
X Top-posted messages will probably be ignored. See RFC1855.
/ \ HTML will DEFINITELY be ignored. Join the ASCII ribbon campaign!

 

[John Woodgate]

I read in sci.electronics.design that Dirk Bruere at Neopax
<dirk@neopax.com> wrote (in <330hbgF3pfvj1U1@individual.net&gt about
'Horowitz-Hill: Serious scholarly query', on Thu, 23 Dec 2004:

Well, I've been using my email address for several years and get around
100 pieces of crap per day.

You must spend a fortune on toilet paper. (;-)
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

 

[me]

Cheap labor
No EPA
No Osha
No unemployment
no benifits
no welfare
....................
.................
.................
the list goes on

 

[Rolavine]

Subject: Re: weird reboots of embedded pc
From: John Perry jp@no.spam
Date: 12/22/04 7:38 PM Pacific Standard Time
Message-id: <N2ryd.4583$ce6.3669@lakeread07

Rich Grise wrote:
...
for embedded applications - you'd only need something as high-level as QNX
(which, AFAIK, is just another unix) if you're doing some massive

OUCH!

At least as far along as QNX4 (the last version I used), the only
relationship between QNX and unix was deliberately superficial. QNX used
the superficial appearance to unix to ease transition of programmers to
QNX, and used a completely unrelated substructure to gain reliability,
speed, and real-time response far beyond anything any "standard" OS is
capable of.

A similar self-hosted system is OS-9 from Microware; there are many
cross-hosted systems that are supposed to be about as good. I only have
direct experience with QNX and OS-9, though.

Why not run DOS? It's real time enough for most applications, and the last

versions of it, as well as the development tools, were reliable as can be.

Rocky

 

[Active8]

On Wed, 22 Dec 2004 15:24:33 GMT, John Bailey wrote:

On Wed, 22 Dec 2004 12:56:47 +0000, John Woodgate
jmw@jmwa.demon.contraspam.yuk> wrote:

I read in sci.electronics.design that John Bailey
john_bailey@rochester.rr.com> wrote (in <41c961e9.30717838@news-
server.rochester.rr.com&gt about 'Neato chaotic equations for analog
computers to display?', on Wed, 22 Dec 2004:
There was a useful thread on sci.fractals in 1997

Are all the threads on that group infinitely long? (;-)

ROTFL!
At least many of the URL's are. Your browser actually added the
ellipses.

In the interest of brevity, I have put a redirection script at:
http://home.rochester.rr.com/jbxroads/interests/sci.fractals/3d_chaotic_ode.html

John Bailey
http://home.rochester.rr.com/jbxroads/mailto.html

Try tinyurl.com

--
Best Regards,
Mike

 

[David Lesher]

legg <legg@nospam.magma.ca> writes:

A) Are their any switchers that automagicly sense the input and
change ranges? Some older Mac's are labeled "110-130 or 220-250"
vice the "110-250" of newer ones. Note I am NOT talking about units
with a {manual} voltage selector switch.

Yes. These will describe themselves as 'universal input' and list one
wide input range of voltages. Sometimes this is achieved through an
automatic switching between ranges (auto-ranging), sometimes through
preregulation that may include power factor correction, and in some
lower-powered applications simply by operating over the wider range
(with the added stress absorbed by adequately rated parts).

Err, that's not what I am asking. I am contrasting units that state
either of two input voltages vs those that have one WIDE (2-1)range.

What do the 'either' units actually do? I know (as the other responder
noted, perhaps a simple full-wave/half wave choice) such is possible
-- my question is what is/was built/sold.

(Or are the "either" units really just wide range ones with
a different label?)

B) What's the gotcha on having a wider input range:

For your requirements (none stated), its just a matter of cost and
availability.

Here my query is more theory-based. I know manufacturing costs
predominate, and create the bias for the "Any Voltage" design;
but I am curious where the piper gets paid when you do so....
(TANSTAAFL.)

--
A host is a host from coast to coast.................wb8foz@nrk.com
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

 

[Mike Diack]

Hi Win
Another daft suggestion :
How about making the 3rd Edition all new material (like Maxim databooks)
not all the old stuff with a few bits deleted and new stuff added on (Like
National Semi databooks). I'm sure you two have enough accumulated wisdom
to test the strength of the average coffee table already so why go over the
old stuff, the serious punter will already have the 2nd edition, and if
not, you get to sell 2 books instead of 1.
M

 

[Rich Grise]

On Thu, 23 Dec 2004 17:28:05 +0000, John Woodgate wrote:

I read in sci.electronics.design that Dirk Bruere at Neopax
dirk@neopax.com> wrote (in <330cclF3qfgbrU3@individual.net&gt about
'Horowitz-Hill: Serious scholarly query', on Thu, 23 Dec 2004:

I'm not sure that it is self evident.
Certainly the CMB provides a universal rest frame (unless I've missed
something).

You missed explaining the abbreviation CMB.

I don't know what that means either, or STR. What's STR? And CMB?

Thanks,
Rich

 

[Dirk Bruere at Neopax]

Rich Grise wrote:

On Thu, 23 Dec 2004 17:28:05 +0000, John Woodgate wrote:


I read in sci.electronics.design that Dirk Bruere at Neopax
dirk@neopax.com> wrote (in <330cclF3qfgbrU3@individual.net&gt about
'Horowitz-Hill: Serious scholarly query', on Thu, 23 Dec 2004:


I'm not sure that it is self evident.
Certainly the CMB provides a universal rest frame (unless I've missed
something).

You missed explaining the abbreviation CMB.


I don't know what that means either, or STR. What's STR? And CMB?

Special Theory of Relativity
Cosmic Microwave Background

--
Dirk

The Consensus:-
The political party for the new millenium
http://www.theconsensus.org

 

[Jonathan Kirwan]

On Thu, 23 Dec 2004 12:57:40 +0000, John Woodgate
<jmw@jmwa.demon.contraspam.yuk> wrote:

I agree, if you buy the student manual as well. Without it, the largely
non-mathematical approach can be frustrating for those who can cope with
maths.

The student manual was a must-have in the case of AofE. No question.

Jon

 

[Jonathan Kirwan]

On Thu, 23 Dec 2004 16:05:09 +0000, Guy Macon
<_see.web.page_@_www.guymacon.com_> wrote:

Please make sure that the binding is as good as the last edition.
I have seen other technical books cheapen up the binding, and AoE
is a reference that I use a *lot*.

Better than... Both my 1st and 2nd editions have broken spines and I treated
them reasonably well -- just a lot of opening and closing.

Jon

 

[dd]

In message <1dcks0t6t49gcoppttadvsdu0mfj7skm9f@4ax.com>, Talion
<nb@ancientartways.com> writes

Greetings,

I have never used a schematic capture program before and I am just getting back
into electronics after many years, so I'm a bit rusty. Please bear with me.

I am trying to simulate a low-power transmitter in the 3.5 MHz range in
LTSpice.
I have not run your listing on LT spice but have experience of crystal

oscillators in LT.
The crystal oscillator regenerates narrow band noise every cycle to
build oscillation a crystal with Q 1 million may take 100 milliseconds
to start to full amplitude i.e. 100000cycles. Depends on degree of
excess loop gain)
Spice under transient conditions calculates many times for each cycle
hence the start up difficulty. LT has fiddle factors that you can change
but the results are iffy.

 

[legg]

On Thu, 23 Dec 2004 19:02:22 +0000 (UTC), David Lesher
<wb8foz@panix.com> wrote:

Refreshed memory. Sanken part was STR80145, STR81145 and other
variations.

RL

 

[Mike Monett]

John Woodgate wrote:

[...]

H'mm; I don't operate a spam filter locally now, because my ISP operates
a Bright mail filter at that end. I used Mailwasher before that, but
it's double work to check the filtering and then download.

Brightmail is great. Sympatico started using it a while ago and the spam dropped
by several orders of magnitude. Even better, it stays at a low level so my spam
filter takes only a few milliseconds. Also, there are no more funny attachments
with "MZ" at the start

[...]

Thanks for the information. I will probably have to go down that route
at some point.

Let us know if it works.

Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

Best,

Mike Monett

 

[Kryten]

Winfield Hill wrote:

All I can say for our book is we worked hard on it, and it has to stand
on its own. We're making major modifications for the third edition, and
are happy to hear suggestions,

Personally I'd love the whole thing to be on a CDROM because I have to move
lodgings from time to time and books account for about a third of the mass.
Possessions become a millstone sometimes.

I found a Deja-Vu format scan of The A of E which allows me to archive my
paper copy, but it isn't great quality scan and I don't have time to OCR and
format the lot.

I think the stuff that changes over time should be put on line.
e.g. the list of preferred commonly used parts.