OT: Bush Thugs Rough Up Grieving Mother of KIA

[John Woodgate]

I read in sci.electronics.design that Guy Macon <http@?.guymacon.com>
wrote (in <10l58t8f4gid6b1@news.supernews.com&gt about '[OT]: Ping Kevin
Aylward - re your "scientific paper"', on Thu, 23 Sep 2004:

John Woodgate <jmw@jmwa.demon.contraspam.yuk> says...

Appearing and producing ANYTHING is both necessary and sufficient. (;-)

Do invisible six-foot tall white rabbits count?



If you state as an axiom that they exist, and can draw useful results

therefrom, you axiom is valid.

Now, some people made a LOT of money out of 'Harvey', which was a useful
result if anything is, so you axiom is validated and we must accept that
these creatures 'exist' (whatever that means).

So, go ahead and encourage any passing god to produce one.
--
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

 

[John Woodgate]

I read in sci.electronics.design that xray <notreally@hotmail.invalid>
wrote (in <nk55l09i92vrcr0pbr5e9qq0efos3su7h4@4ax.com&gt about '[OT]:
Ping Kevin Aylward - re your "scientific paper"', on Thu, 23 Sep 2004:

On Thu, 23 Sep 2004 08:33:14 +0100, John Woodgate
jmw@jmwa.demon.contraspam.yuk> wrote:

I read in sci.electronics.design that Rich Grise <null@example.net
wrote (in <zvt4d.5637$Co1.5334@trnddc02&gt about '[OT]: Ping Kevin
Aylward - re your "scientific paper"', on Thu, 23 Sep 2004:

That's what I wanna do.

I'm tempted to ask, 'You want to be an insurance company?' but, since
you are in the US, you wouldn't understand the allusion.

Apparently. What does it mean? Some kind of pun I assume.

Dull explanation:

We have a TV ad where people ring up an insurance company and demand
'Quote me happy.' Pathetic.
--
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

 

[martin griffith]

On 23 Sep 2004 04:12:34 -0700, in sci.electronics.design you wrote:

hai Designers

this is vijayamurugan from VIT^,Velore,India
I am a P.G Student.
i have to design a D.C low voltage high Current Power Source
[Convetrer]
Ratings are
1800 Amps,75 Volts.
So i kindly request you the designers to suggest me a better Converter
Topology,Devices suitable for such ratings.and related things

Thanks in Advance
bai
vijay<vijayamurugan2000@yahoo.com

___________________________________________________________________
VIT^ - Vellore INstitute of Technology,Vellore,Tamilnadu,India. and is
evergrowing. http:\\www.vit.ac.in

There is not enough information in your post

1800 Amps,75 Volts.
the input or output specification?

martin

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

 

[Fred Bloggs]

Josep Duran wrote:

"Guy Macon" <http://www.guymacon.com> escribió en el mensaje

One cannot
have a better eBay feedback record than John Larkin's perfect one.



Take a closer look at his feedback and you'll see he doesn´t seem to care
about
leaving feedback to the others.

I would count this as a negative vote.

Regards

Josep Duran

The feedback is meaningless- pathetic amount of cliches, superlatives,
exclamations, and emoticons. I won an auction from this bastard seller
who notified that any negative feedback about them will result in being
permanently barred from bidding with them again- I told them to go to
hell and did not complete the buy- ebay sends me this pissy warning-and
I am sooo worried- never did amount to anything. I am the buyer- they
satisfy me and not the other way around- otherwise they can keep their
junk in warehouse.

 

[Tony]

On 23 Sep 2004 04:03:38 -0700, harshana@sumuthu.lk (Harshana) wrote:

Tony <tony_roe@tpg.com.au> wrote in message news:<g2n2l01m4q4aj3ma1f1cbghmj2al6f66jc@4ax.com>...

Just one caution - the relatively low PWM frequency mentioned anywhere
will minimize switching losses, but watch for filament resonance,
which can see off an expensive lamp quite quickly due to the
considerable oscillatory forces from 12A of current modulation. In the
extreme case you could lower the frequency to as low as 100-120Hz (the
same as it sees when running on AC).

Tony (remove the "_" to reply by email)


watch for filament resonance,
which can see off an expensive lamp quite quickly due to the
considerable oscillatory forces from 12A of current modulation.


This is one concern I have, @ 600~700Hz, I can here the filament
singing (slight mmmmmm). Will it reduce the lifetime of the beam
considerably? How do I know whether its resonating or not ???

It was about 35 years ago I went through this exercise, but yes, a

couple of lamps lasted only 10 minutes or so (ASAIR a PAR36 lamp -
YMMV). I guess if your ears are good enough you could put a pot into
the 555 and wind it through the low frequency range to find the middle
of a broad frequency null where it made the least noise. I didn't
imagine the resonance Q could be very high with a hot filament, but
conversely it also wouldn't take much to rupture one.

Tony (remove the "_" to reply by email)

 

[Fred Bartoli]

"vijayamurugan.P" <netizen@outgun.com> a écrit dans le message de
news:1095939576.745180.125450@k17g2000odb.googlegroups.com...

that is the output requirment
not input

suggest

1800A 75V output, no input.

Hmmm, let me think...
Yes... I'd go for an alternator feeding an AC motor that will drive the
alternator.


--
Thanks,
Fred.

 

[Rene Tschaggelar]

Ian Buckner wrote:

"Rene Tschaggelar" <none@none.net> wrote in message
news:414ef655$0$21027$5402220f@news.sunrise.ch...


The required heating of in the order of 1 Watt may
not be doable ? Especially when the device is to be portable.

Rene


A bit less than that - 0.75W for 10 sec, dropping to about 1/3W
or so for reasonable ambient temps. Did the OP state portable?
I missed that, but even so a couple of NiMH AA's
would provide enough power for 20 hours. Putting thermal
insulation round it could improve on that.

Well, there are 2 reasons trying to avoid an OCXO,
power consumption and cost. Perhaps size at one point,
but the current OCXOs are rather tiny compared to what
size they were 2 decades ago.
Yes, thermal insulation may help a fair bit on power.

Rene

 

[Mook Johnson]

I think what he was getting at is:

What is the input power source that will supply your converter?

This is a 135K Watt output so you will need a special supply to provide
enough input power for such a beast.

Typical AC wall plug won't get it (typical 1.8k Watt)

Is this a sustained output or a pulse? If pulse how wide?




"vijayamurugan.P" <netizen@outgun.com> wrote in message
news:1095939576.745180.125450@k17g2000odb.googlegroups.com...

that is the output requirment
not input

suggest

 

[John Woodgate]

I read in sci.electronics.design that Kevin Aylward
<salesEXTRACT@anasoft.co.uk> wrote (in <lay4d.66152$U04.61617@fe1.news.b
lueyonder.co.uk&gt about '[OT]: Ping Kevin Aylward - re your "scientific
paper"', on Thu, 23 Sep 2004:

First the obligatory insults:
Ho humm. Look, sonny, we have already established you don't have the
pre-requite background to understand my answers, so go back to making
your girlie doll toys.

They aren't obligatory. I think you'd do better to just ignore the
critiques that are obviously based on a lack of understanding.
--
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

 

[Tony Williams]

In article <ciu82g0240s@drn.newsguy.com>,
Winfield Hill <Winfield_member@newsguy.com> wrote:

Tony, if you have access to the May 1970 ED article, do you
know who the author was?

James Sherwin.

A J.S Sherwin is referenced as publishing many other
technical articles or tech notes. In no particular
order........

"Liberate your FET amplifier". EDN May 1970.

"Distortion in FET amplifiers". Electronics Dec 1966.

"Voltage Controlled Resistors (FET)". Solid State Design Aug 1965.

"How, Why and Where to use FETs". Electronic Design May 1966.

"Knowing the Cause helps cure distortion in FET Amplifiers".
Electronics Dec 1966.

The two other Siliconix names from those days are J. Watson
and W. Gosling. Bill Gosling was one of my professors in uni,
although I didn't know then that I would 'meet' him again
years later.

Also, was the Siliconix app note substantially the same?

AN102 is obviously drawn from the original TA70-2 and seems
to be a 1997 update+rewrite in electronic form. The guts of
the information given in TA70-2 is still there, relatively
unchanged.

--
Tony Williams.

 

[James Meyer]

On Wed, 22 Sep 2004 16:09:22 -0700, Jim Thompson <thegreatone@example.com>
wroth:

TI used to have a line of IR photo diodes that were just like the "D"
plastic BJT package... no windows ;-)

...Jim Thompson

With a little more research on your part, I think you'll find that
although the package *shape* is identical, the package *material* is
IR-transparent and only looks black because you can't see IR spectrum radiation.

Jim "the other one"

 

[James Meyer]

On 22 Sep 2004 13:26:36 -0700, acannell@wwc.com (Asa Cannell) wroth:

Would anybody like to share their most sensitive photodiode stories? I
am curious just how far photodioes have been pushed as far as
sensitivity, especially at room temperature and with off the shelf
components.

Asa

The very first hit in a Google search for "photon counting photodiode"
was this one:

http://optoelectronics.perkinelmer.com/catalog/Category.aspx?CategoryName=APD+Array

They don't come much more sensitive than that.

Jim

 

[Fred Bloggs]

Tom Seim wrote:

That is actually a spectacularly poor showing for Bush when you consider
all of the sociocultural manipulation and dirty tricks he has been
using. If the voting population ever recovers from being stunned into
programmed irrationality by all that jingoistic evasion of the harsh
reality of total failure, it will be landslide victory against him. So
you think the "freedom is marching on in Iraq" is an intelligible
summary of the situation there? Your moron "boy" hasn't even restored
basic electricity and water to the city of Baghdad


Fred,

As usual, you don't know shit:

http://www.usaid.gov/iraq/updates/sep04/iraq_fs49_091604.pdf

Tom

That document reads like something produced by Hitler's Third Reich- a
total fraud. You might note most of the claims boil down to bureaucratic
bs about starting this, planning that, and auditing something else- a
lot of tabulated garbage about throwing away vast amounts intended to
give the impression that it is actually buying something. The actual
accomplishments are nearly nil-and that is because much of this work is
being sabotaged and the international NGO's have fled or are in the
process of evacuating the country. I rate this total government bullsh_t
along the lines of Bush's comments on the Iraqi Olympic soccer team- how
wonderful- they turned around and bitch-slapped him by saying they
*hate* America and will become insurgents when they return home.

 

[Fred Bloggs]

John Larkin wrote:

On Wed, 22 Sep 2004 09:36:37 GMT, Fred Bloggs <nospam@nospam.com
wrote:



John Larkin wrote:

On Tue, 21 Sep 2004 11:24:49 GMT, Fred Bloggs <nospam@nospam.com
wrote:



Tom Seim wrote:


The Dems have been fighting mightily to bar Ralph Nader from the
ballots Nov. 2. This is the height of hypocrisy, as the Dems have been
accusing Republicans of working to deny people the right to vote.

There is a BIG difference between protecting the voters from a sham
candidate, who can't decide his party affiliation, and falsely accusing
them of being felons so as to deny their access to the polls entirely.
You and the other Nazi's might have a point if the Nader petition drives
had been a grass-roots effort conducted by sincere Nader supporters, but
when that is not the case, and these drives were funded, organized, and
orchestrated by a major political opponent for purposes of political
destabilization, then you have a major fraud and abuse of the political
process on your hands. Nader just happens to be their most convenient
tool, but they stopped just short of fabricating a customized candidate
specifically designed to do the most damage to their opponent's
constituency. To oppose this abuse is not a denial of voter choice, and
serves a legitimate democratic purpose that is founded in the basic
legal principles that underlie the requirement to collect a minimum
number of ballot petition signatures. That legitimate purpose is called
preventing "political party splintering"- a well-known tactic in the
history of elections . Why do you think the petition count laws exist in
the first place? The controlling Supreme Court ruling states "The State
surely has a valid interest in making sure that minor and third parties
who are granted access to the ballot are bona fide and actually
supported, on their own merits, by those who have provided the
statutorily required petition or ballot support."- and this in Anderson
vs Celebrezze, a ruling bitterly dissented by the conservative judges
such as Rhenquist because it applied to the splintering of the Reagan
support by Anderson in 1980. Every single one of the Nader election
ballot drives in the battleground states are fraudulent fabrications of
a major party to cause splintering of a major opponent; this has less to
do with disenfranchisement, everything to do disingenuous manipulation
of the election, and does not meet the Constitutional test of "bona
fide" support. As usual, you demonstrate a severely depressed
intellectual capability with your either/or mindset that makes no
allowance for balance or judgment.

Republican support of Nader ballot-
http://www.factcheck.org/article.aspx?docID=216



You will no doubt be pleased by yesterday's poll by the New York Times
that shows Kerry leading Bush by 4 points among likely voters. Likely
voters in New York State.

John


That is actually a spectacularly poor showing for Bush when you consider
all of the sociocultural manipulation and dirty tricks he has been
using. If the voting population ever recovers from being stunned into
programmed irrationality by all that jingoistic evasion of the harsh
reality of total failure, it will be landslide victory against him. So
you think the "freedom is marching on in Iraq" is an intelligible
summary of the situation there? Your moron "boy" hasn't even restored
basic electricity and water to the city of Baghdad, his overwhelming
military might, which has been mis-used and squandered, has been
humiliated into hiding behind k-tons of concrete barriers, ceding
control of vast amounts of territory to the insurgents, and
indiscriminate murder from a distance of countless numbers of the
civilian population. *Every* single post-invasion objective is now in a
state of total failure, ruin, and collapse- not the least of which is a
total absence of *any* form of viable native Iraqi security. You call
this freedom marching on? The *MOST* amazing aspect of this whole thing
is HOW IN HELL Bush and Rumsfeld not only continue to show their ugly
faces in public- but then go on to assume an air of authority and
confidence as they persist with self-congratulatory praise and forecasts
of the program. I can't understand why people aren't' throwing rocks or
cow chips at them! I can understand a few things going wrong- but when
the fundamental core of the invasion has been defeated then we have an
inexcusable failure for which there should be real personal
accountability. Bush and Cheney resigning from office would only be only
token penance for this major transgression against the world- all
these people killed, maimed, shattered, all this disruption, and
material waste, and destruction of astronomical proportion- for nothing .



Fred,

you are *way* too involved in this. It isn't healthy.

John

I want to see more polling statistics like the District of Columbia:
Kerry:86%, Bush:9%, Nader:5% - now those are reasonable numbers.

 

[Winfield Hill]

colin wrote...

if you look at the bf998 it has 1dB of noise at 50ohm at 800MHz,
which means the total noise wil be marginally more than from a
50ohm resistor, if im not mistaken that is, they dont publish
noise voltage and current, which is a shame ...

Most of the bf998 manufacturers don't publish the test circuit
for the noise measurement either, but it's probably similar to
the gain circuits in the Philips datasheet, which being tuned
has a gate source-impedance certainly much higher than 50 ohms.
Siemens published their 200MHz and 800MHz noise test circuits
in an old datasheet. The 200MHz amplifier uses a tuned step-up
transformer that's resonated with about 7pF of capacitance
(from 15pF in series with a bb505 tuning varactor), implying a
gate impedance of Q times 113 ohms = say about 5k ohms (Q=50).

So the bf998's seemingly low 1dB noise figure likely corresponds
to 3 - 5nV of noise voltage, or whatever.

I've never been _that_ impressed by dual-gate mosfet noise.


--
Thanks,
- Win

(email: use hill_at_rowland-dotties-org for now)

 

[Rene Tschaggelar]

vijayamurugan.P wrote:

hai Designers

this is vijayamurugan from VIT^,Velore,India
I am a P.G Student.
i have to design a D.C low voltage high Current Power Source
[Convetrer]
Ratings are
1800 Amps,75 Volts.
So i kindly request you the designers to suggest me a better Converter
Topology,Devices suitable for such ratings.and related things

Without much experience at that power level, I'd
have a look at synchroneous rectification with a
FET recifier. Before that some multiphase
PWM modulators and a truckload of ferrite transformers.

Alternatively, thyristors in a 6 or 12 pulse
arrangement might be a solution.

Either way, a wrong trigger is going to be costly.
Don't even think of the sweat required to change
all parts.

Rene
--
Ing.Buero R.Tschaggelar - http://www.ibrtses.com
& commercial newsgroups - http://www.talkto.net

 

[John Woodgate]

I read in sci.electronics.design that Michael Robbins
<michael.robbins@us.cibc.com> wrote (in <c6c65b14.0409230354.fd91861@pos
ting.google.com&gt about 'Get me started: Alternator, ballast resistor,
electromech...', on Thu, 23 Sep 2004:

As I understand this device--and I'd like very much to know if I'm
wrong--the pedals on the stepper machine turns the alternator and the
ballast resistor loads the alternator making the pedals resist the
user's work. I'd like to know how this process works and what sort of
circuit is needed to create this effect.

At risk of underestimating your insight, I would say that the energy
input from the victim^H^H^H^H^H^H user is converted to electrical energy
by the alternator and then into heat in the ballast resistor.

In principle, all you need is the alternator and resistor connected
together - just the two elements. To adjust the mechanical resistance,
you adjust the value of the ballast resistance - the simplest way being
to use a laboratory-type rotary or slider 'rheostat'.

But if you want to vary the resistance electrically, that is a lot more
complex. While there are analogue solutions, you might not enjoy them.

For example, a line of power resistors with values 1, 1, 3, 6, 12, etc.
times an appropriate scaling factor to suit your alternator, switched in
or out of circuit by double-throw switches, enables you to select any
value in steps of 1 up to 23 or however far you extend the series. You
will need to fan-cool these, but the peddaler can turn the fan.

A pulse-width modulation control is more attractive, but demands
considerable electronics skills.
--
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

 

[Winfield Hill]

vijayamurugan.P wrote...

the input is 3 Phase AC 415V 50Hz/60Hz
the output Requirment is 1800 Amps,75 Volts.
Suggest me suitable Converter confihuration & devices used
in the circuit

To design (or even just to specify and purchase) a 135kW
power converter, you need to hire an experienced expert.


--
Thanks,
- Win

(email: use hill_at_rowland-dotties-org for now)

 

[Charles Elliot]

In article <1095939576.745180.125450@k17g2000odb.googlegroups.com>,
dated 23 Sep 2004 04:39:36 -0700,
vijayamurugan.P, <netizen@outgun.com> says...

that is the output requirment 1800 Amps,75 Volts.
not input

What is the input ?

 

[Bob Stephens]

On Thu, 23 Sep 2004 12:50:58 +0100, John Woodgate wrote:

An understanding of Boolean algebra
requires one to dismiss the ideas of decimal math.

Or to more fully understand them.

(I know it's a split infinitive - bite me)