Driver to drive?

Hi,

How to detect busy by MT8880?
And how to detect the connection is estalished?

Thnaks!

 

[Rich Grise]

On Sat, 25 Dec 2004 12:29:17 +1100, Adam. Seychell wrote:

Now for the (modified) common drain configuration the FET operates as a
voltage follower. At 140dB SPL the AC output voltage will be +-130mV and
have a DC bias of 10kOhm*Idss or somewhere between 2 and 5. Anyone care
to tell me if my calculation are wrong because I cannot see the
advantage of the modified common drain FET configuration.

As long as you're doing all that arithmetic, do it at a few data points
_less than_ 140 dB SPL for both configurations, and see what the graph
looks like.

Good Luck!
Rich

 

[Rich Grise]

On Sat, 25 Dec 2004 01:31:15 +0000, Guy Macon wrote:

Just so I can claim to be the very first to say so...

The third edition sucks! The second edition was WAY better!
I liked the black-on-white type better than the new maroon
on fuschia color scheme, I hate the fact that the component
values are all in octal, and I don't care how fond Winfield
is of the Klingon language; he should have stuck with English.

Remember, you heard it here first.

This is a joke, right?

Thanks,
Rich

 

[Guy Macon]

Rich Grise wrote:

Guy Macon wrote:

Just so I can claim to be the very first to say so...

The third edition sucks! The second edition was WAY better!
I liked the black-on-white type better than the new maroon
on fuschia color scheme, I hate the fact that the component
values are all in octal, and I don't care how fond Winfield
is of the Klingon language; he should have stuck with English.

Remember, you heard it here first.

This is a joke, right?

Of course it is. Winfield would never write in Klingon.
He prefers Tnuctipuni.

 

[Jamie Morken]

Hi Bill,

billb@eskimo.com wrote:

The way I understand this is that the external EM field causes

electrons

to flow in the antenna. So there is a flow of electrons in the

antenna

that is induced by the external EM field. This doesn't mean that the
electrons are emitting an EM field, they are moving in a way that
reflects the external EM field..


Uh... Can you explain to me why "reflecting" an EM wave
is fundamentally different than "emitting" a wave? I

Oops, I didn't mean to reflect literally, as in a mirror reflection, but
I meant that the electrons "track" the EM field so that the electron
density at a given location is proportional to the EM field strength at
that location. I don't know if this is correct, it is just how I try to
understand it now.

was taught that they are identical. The electron doesn't
know the difference. When an electron accelerates, that
electron emits EM waves. "Reflection" is just a special
case, a case where incoming waves caused the electron to
accelerate, and then the accelerating electron emitted waves
at the same frequency.

Why should we argue the point? Ah, because if we look at
"emission" and insist that it is simply "reflection," then
we miss some interesting technology.

In studying receiving antennas, we see these emitted waves
as "scattered" waves. When a dipole antenna interacts with
incoming EM waves, it absorbs at most one microjoule for
every microjoule it scatters. In order to absorb EM energy,
an antenna must scatter EM waves. But the scattering
process is the same as an emission process, and once we
realize this, we can understand that in order for an antenna
to receive, it must transmit. And once we realize this, we
can engineer the efect.

Search on "Sutton" and "Spaniol" for information about the
NASA VLF antenna circuits they studied. They discovered
that an inefficient small antenna could be improved by
treating the "scattering" as being emission... and
therefore actively driving the antenna. They dubbed
this the "Black Hole Antenna" effect.

Thanks for the info, I found the report here:
http://www.unusualresearch.com/Sutton/sutton.htm

----

What continually amazes me is the number of people who
respond to these ideas as if they're threatening or
blasphemous or something, when in fact they're part of
standard physics. At most, they're just "out of the box"
thinking. They don't appear in undergrad textbooks;
they're an alternative viewpoint on conventional EM.

I think it was Feynman who said "unless you have to
have two or three different ways to explain a piece of
physics, you don't really understand it yourself."

Kids these days! They think the very opposite:
they seem to think that we must have "one single best
way" to explain physics, and all other viewpoints are
inferior or even incorrect. Huh. Well, I certainly
can see that the education system promotes such a view.
To get good grades in school, you'd better supply the
"single right answer" and avoid any out-of-box
alternative explanations. In the end you'll do really
well on tests, but perhaps your creativity will be
seriously harmed.

I don't fully understand the theory, I have my own simple wave-based
model of electromagnetism and I don't want to complicate it

I agree with you that there is too much conventional thinking and even
worse too much criticism of unconventional thinking. New ideas are
always rejected at first I think. For me if an idea isn't
unconventional it is probably a waste of time to work on it

Merry Christmas,
Jamie Morken

(((((((((((((((((( ( ( ( ( (O) ) ) ) ) )))))))))))))))))))
William J. Beaty http://staff.washington.edu/wbeaty/
beaty@chem.washington.edu Research Engineer
billb@eskimo.com UW Chem Dept, Bagley Hall RM74
206-543-6195 Box 351700, Seattle, WA 98195-1700

 

[Rich The Philosophizer]

On Fri, 24 Dec 2004 18:28:24 +0000, Kevin Aylward wrote:

Pig Bladder wrote:
On Fri, 24 Dec 2004 08:11:18 +0000, Kevin Aylward wrote:

John Larkin wrote:
[snipped John and the other Kevin]
And, of course, since Kevin Aylward knows everything that could
possibly be known, it's impossible for there to be any other
explanation except for Kevin's.

All I am doing is identifying some global properties that are taken to
be always true.

How very, very strange.

That's exactly what I'm doing.

;^j
Rich

 

[Guy Macon]

Richard The Troll wrote:

Kevin is fun to troll, but even _I_ draw the line (well, Rich the techie
makes me draw the line) at personal stuff, at leasst any deeper than, say,
"Idiot", as a one-shot shot.

Kevin shouldn't dish it out if he can's take it. Anything bad I have
said about him pales in comparison to what he has said about me.
He who lives by the flamethrower dies by the flamethrower.

 

[Pig Bladder]

On Fri, 24 Dec 2004 18:57:56 +0000, John Woodgate wrote:

I read in sci.electronics.design that Scott Stephens
scottxs@comcast.net> wrote (in <5uYyd.806592$8_6.572165@attbi_s04&gt
about 'Horowitz-Hill: Serious scholarly query', on Fri, 24 Dec 2004:

Life has an objective purpose relative to the
universe - maximize entropy and order matter and energy at a high level
the way it is organized at a low level.

Life locally *minimizes* entropy.

Life's "Objective Purpose" is to Live.

Duh.
--
The Pig Bladder From Uranus, still waiting for
some hot babe to ask what my favorite planet is.

 

[Pig Bladder]

On Fri, 24 Dec 2004 18:29:35 +0000, Kevin Aylward wrote:

Well, we assume

You ASS-U-ME a lot of stuff, Aylward.

And what's this "we" shit? Got a Memory Stick in your pocket?
--
The Pig Bladder From Uranus, still waiting for
some hot babe to ask what my favorite planet is.

 

[Paul Burridge]

On Fri, 24 Dec 2004 17:38:09 GMT, Scott Stephens <scottxs@comcast.net>
wrote:

Kevin Aylward wrote:

Scott Stephens wrote:

Mike Page wrote:

Kevin Aylward wrote:

Science isn't engineering.

It is in the sense I am using the word. That's why its in quotes. dah...

Is it? Well then it should rather be within inverted commas!
Buck up, Kev. ;-)
--

"What is now proved was once only imagin'd." - William Blake, 1793.

 

[Paul Burridge]

On Fri, 24 Dec 2004 10:29:11 -0800, John Larkin <john@spamless.usa>
wrote:

On Fri, 24 Dec 2004 17:20:03 GMT, Scott Stephens <scottxs@comcast.net
wrote:


I am. Freedom to speek my mind, and say this looks like dogshit, smells
like dogshit, feels like dogshit and tastes like dogshit.


If it dies look and smell like doggie doo, why go on to feel and taste
it? Why not just step over it?

That's what I was wondering, too... :-|
--

"What is now proved was once only imagin'd." - William Blake, 1793.

 

[Steven Swift]

Winfield Hill <hill_a@t_rowland-dotties-harvard-dot.s-edu> writes:

Does anyone know a switching IC that's similar to the LT3439 but
runs at MHz frequencies? Maybe with sine-wave transformer drive?

--
Thanks,
- Win

Good luck on finding a chip. To get the most market, chips are designed to
be application catch-alls. Every design I did for low noise required
custom circuits. You can use some of the pieces in the chips as part of the
control loop. They always have references, gain blocks and switches.

Again, good luck.

Steve.
--
Steven D. Swift, novatech@eskimo.com, http://www.novatech-instr.com
NOVATECH INSTRUMENTS, INC. P.O. Box 55997
206.301.8986, fax 206.363.4367 Seattle, Washington 98155 USA

 

[John Larkin]

This is precisely what makes me so mad about windows. The PC hardware
is perfectly capable of protecting the OS from this sort of thing, but
MS simply chooses to not do it right.

Namely, MS can never tell the difference between code and data; they
have finally managed to allow worms in jpeg files, something that was
once considered to be a hilarious joke. When in doubt, execute it.

John

 

[Rich Grise]

rare, yearling, or the
morticians occasional horror: a small miracle stopped short by a
drunk driver, or the innocent victim of a drive-by shooting...

2 cups finely chopped very young human flesh
1 cup shredded cabbage
1 cup bean sprouts
5 sprigs green onion, finely chopped
5 cloves minced garlic
4-6 ounces bamboo shoots
Sherry
chicken broth
oil for deep frying (1 gallon)
Salt
pepper
soy & teriyaki
minced ginger, etc.
1 tablespoon cornstarch dissolved in a little cold water
1 egg beaten

Make the stuffing:
Marinate the flesh in a mixture of soy and teriyaki sauces
then stir fry in hot oil for till brown - about 1 minute, remove.
Stir-fry the vegetables.
Put the meat back into the wok and adjust the seasoning.
De-glaze with sherry, cooking off the alcohol.
Add broth (optional) cook a few more minutes.
Add the cornstarch, cook a few minutes till thick,
then place the stuffing into a colander and cool;
2 hours
Wrap the rolls:
Place 3 tablespoons of stuffing in the wrap, roll tightly -
corner nearest you first, fold 2 side corners in,
wrap till remaining corner is left.
Brush with egg, seal, and allow to sit on the seal for
a few minutes.
Fry the rolls:
325° if using egg roll wraps, 350° for spring roll wraps.
Deep fry in peanut oil till crispy golden brown, drain on paper towels.



Lemon Neonate

Turkey serves just as well, and in fact even looks a bit like a
well-dressed baby. By the time you turn the child?s breast into
cutlets, it will be indistinguishable. The taste of young human,
although similar to turkey (and chicken) often can be wildly
different depending upon what he or she has consumed during its
10 to 14 months of life...

4 well chosen cutlets (from the breasts of 2 healthy neonates)
2 large lemons (fresh lemons always, if possible)
Olive oil
Green onions
Salt
pepper
cornstarch
neonate stock (chicken, or turk

 

[John Larkin]

On Sat, 25 Dec 2004 23:25:10 +0000, John Woodgate
<jmw@jmwa.demon.contraspam.yuk> wrote:

Darwinian evolution **works**. Unresolved questions are whether it is
the only type of evolution on Earth (or the only possible type anywhere)
and how it worked in specific detailed cases. Or didn't work, e.g. why
there are no animals with wheels.

If paved roads occurred naturally, there would be.

John

 

[Jim Adney]

On 24 Dec 2004 16:49:00 GMT Jim Yanik <jyanik@abuse.gov.> wrote:

Jim Adney <jadney@vwtype3.org> wrote in

Where are the LF contacts used vs the HF contacts?

The timing switch.

Thanks, got it. The ones in the timing switch are the ones I see when
I fix the broken keys for the B timebase drum.

Since I've never had to work in the vertical attenuator area I had
just assumed that the contacts were the same. I'll just have to hope
that my luck holds.

-
-----------------------------------------------
Jim Adney jadney@vwtype3.org
Madison, WI 53711 USA
-----------------------------------------------

 

[nick]

i am a beginner
"nick" <ucheng4@csc.cuhk.edu.hk> źśźgŠóślĽóˇsťD:1104029171.458387@jupiter.cse.cuhk.edu.hk...

thx

 

[Nico Coesel]

"Apparatus" <apparatus.home@lycos.com> wrote:

Hello,

** I feel somewhat overwhelmed by my pcb design task, so I appologize
in advance for the length/convoluted-ness of this post. I have
attempted to compact and clarify as best as I can.

I am designing a PCB of an embedded system with mostly SMT parts. The
board includes audio (TI TLV320AIC1106) and ethernet subsections
(Cirrus Logic CS8900A). It also includes an Oki Semiconductor ML67Q5003
ARM microprocessor running at 20MHz (4x PLL) clocked by a 5MHz
oscillator. It draws not more than 0.5A, is only two layers, and has
three regulated voltages (5, 3.3, 2.5)from a 16V 500mA wall-wart
transformer.

8 mils is too narrow for power. Use at least 16 mils or better 20
mils. If you route the power like a grid and place 100nf bypass
capacitors on the intersection points, you will be fine.

--
Reply to nico@nctdevpuntnl (punt=.)
Bedrijven en winkels vindt U op www.adresboekje.nl

 

[John Woodgate]

I read in sci.electronics.design that Clarence_A <no@No.com> wrote (in
<Pjnzd.2713$wZ2.688@newssvr13.news.prodigy.com&gt about 'Horowitz-Hill:
Serious scholarly query', on Sun, 26 Dec 2004:

Whiptail Lizards do form themselves into a "wheel" to race down hill to
escape predators. But I have no Idea how many MPG they get!

Metres per gnat?

--
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

 

[Active8]

On Sun, 26 Dec 2004 04:04:14 GMT, Active8 wrote:

WTF?
--
Best Regards,
Mike