Re: History of bulk electronic components suppliers

[martin griffith]

On 13 Feb 2007 01:38:49 -0800, in sci.electronics.design

Not true. Encouraging people to use 555's should be a misdemeanour,
but there are (rare) situations where the the 555 could be the right
solution. I've not run into one in thirty years of design work, but I
suppose there must be a few applications where it is still the right
choice.

I'm just about to try syncing 3 little smps together. Of course the
555 was the first thing that came into my head as a master clock, say
80K, what would you suggest?

I'm certainly not going to use a PIC


martin

 

[[email protected]]

I'm just about to try syncing 3 little smps together. Of course the
555 was the first thing that came into my head as a master clock, say
80K, what would you suggest?

I'm certainly not going to use a PIC

The 74121 and 74221 both produce more stable delays than the 555, with
less jitter.

I'd be more likely to stick a crystal oscillator onto a PLD.

 

[Rich Grise]

On Mon, 12 Feb 2007 18:20:42 +0000, Eeyore

"Reading Rainbow":
http://gpn.unl.edu/rainbow/

I can't recall such. I don't suspect many regular TV shows would tell
their own audiences to turn off the idiot box and pick up a book. The
sponsors wouldn't like that.

You have a good point: you almost never see people reading, or buying
books, or even writing, on regular TV shows. You do see people
driving, smoking, driving, playing video games, driving, watching TV,
and driving.

But if some people enjoy being stupefied by the absurd crap on TV...

It seems like every time there's a book on a sitcom, it's some kind
of McGuffin - i.e., it or its use becomes the core gag for the show,
typically a kid that can't do their homework, or the wife joins a
book club and wants to drag her hubby to it.

Thanks,
Rich

 

[Rich Grise]

Bill Sloman thinks it should be.

Not true. Encouraging people to use 555's should be a misdemeanour,
but there are (rare) situations where the the 555 could be the right
solution. I've not run into one in thirty years of design work, but I
suppose there must be a few applications where it is still the right
choice.[/QUOTE]

I tried to use one once, but the electrical environment was very harsh;
all my circuit did was eat 555s.

So, I started over and used an ordinary astable with some robust
transistors, and it got the job done. Unfortunately, the project
died due to poor mismanagement. )-;

Cheers!
Rich

 

[martin griffith]

On 13 Feb 2007 07:26:05 -0800, in sci.electronics.design

The 74121 and 74221 both produce more stable delays than the 555, with
less jitter.

I'd be more likely to stick a crystal oscillator onto a PLD.

Thanks Bill, I'd actually forgotten about 74121s etc. but I think an
crystal + PLD may be a bit overkill,


martin

 

[Richard Henry]

Dare I ask how it's possible to score over 100% ? It's not by any change an
attempt to massage the average figure is it ?

Talking of which the average figure someone posted is equivalent to 56% which is
pretty damn lame.

Graham

SAT scores have no direct relation to % correct.

 

[John Larkin]

SAT scores have no direct relation to % correct.

But let's hope the relationship is at least monotonic.

John

 

[John Larkin]

http://www.wilmingtonstar.com/apps/pbcs.dll/article?AID=/20070208/NEWS/702080349/-1/State

In the "Who Really Cares" book, there's a pair of USA maps. One shows
the states where people are most generous, in terms of charity, blood
donations, volunteerism, that sort of thing. The other map is the
states that voted for Kerry. They are almost exact complements.

John

 

[Genome]

Unfortunately, the project died due to poor mismanagement. )-;

Cheers!
Rich

Cripes!

You expect mismanagement as standard. Having poor mismanagement must really
suck.

What sort of Mismanagers are schools turning out these days?

DNA

 

[Homer J Simpson]

It seems like every time there's a book on a sitcom, it's some kind
of McGuffin - i.e., it or its use becomes the core gag for the show,
typically a kid that can't do their homework, or the wife joins a
book club and wants to drag her hubby to it.

Or it's a bible or book of magic spells - which are pretty much the same
thing actually.

 

[Homer J Simpson]

In the "Who Really Cares" book, there's a pair of USA maps. One shows
the states where people are most generous, in terms of charity, blood
donations, volunteerism, that sort of thing. The other map is the
states that voted for Kerry. They are almost exact complements.

You persist in seeing things in the most simple minded terms. What does that
tell us about you?

 

[John Larkin]

You persist in seeing things in the most simple minded terms. What does that
tell us about you?

That I believe in causality?

That the most self-declared-liberal people I've known were also the
meanest to real people around them?

OK, what's your, more nuanced, explanation for the mappings?

John

 

[Lostgallifreyan]

That the most self-declared-liberal people I've known were also the
meanest to real people around them?

Ah, aren't you confusing liberal with libertarian? I think there is a
difference.

 

[Homer J Simpson]

That I believe in causality?

That the most self-declared-liberal people I've known were also the
meanest to real people around them?

OK, what's your, more nuanced, explanation for the mappings?

That neither right nor left wing voters are a single block of identical
persons. What happened to the 'wide tent' the right keeps proclaiming?

What makes you think the methodology used in the survey accurately describes
the claimed result?

Practical experience would suggest that those who do the bulk of the work in
helping the afflicted are as different from the Hollywood elite you hate as
the conservatives of the mid west are from the Cheneys and Rumsfelds of the
world.

 

[john jardine]

These days you're likely to be though a paedophile for wanting to do that.

Sad world. I think the principle is great though.

Graham

Agreed. It's nearly reached the point where geek = anorak = paedophile.
Whatever the titles chosen, they invariably point out someone to deride,
sneer at and be suspicious of.

 

[John Larkin]

That neither right nor left wing voters are a single block of identical
persons. What happened to the 'wide tent' the right keeps proclaiming?

What makes you think the methodology used in the survey accurately describes
the claimed result?

Actually, there is no claimed result; just two maps. But I am pretty
good at pattern matching, as most engineers are.

Practical experience would suggest that those who do the bulk of the work in
helping the afflicted are as different from the Hollywood elite you hate as
the conservatives of the mid west are from the Cheneys and Rumsfelds of the
world.

Hate? Have I ever expressed hate for anyone?

You are projecting. I don't even hate you.

John

 

[Richard The Dreaded Libertarian]

Ah, aren't you confusing liberal with libertarian? I think there is a
difference.

I think when he says "self-declared-liberal" he's excluding Libertarians
by default. A "self-declared-liberal" is just a Socialist in a Democrat
suit, just like a "neoconservative" is a Nazi in a Republican suit.

Find out how libertarian you are:
http://www.theadvocates.org/quiz.html

Cheers!
Rich

 

[Rich Grise]

Cripes!

You expect mismanagement as standard. Having poor mismanagement must really
suck.

What sort of Mismanagers are schools turning out these days?

Oh, this guy didn't need to go to any school, because he already knew
everything. ;-)

Cheers!
Rich

 

[Homer J Simpson]

Actually, there is no claimed result; just two maps. But I am pretty
good at pattern matching, as most engineers are.

Except the 'pattern' is ridiculously simplistic - like the so called red
state / blue state maps.

I note one that showed that all hurricanes only hit red state counties.



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[John Larkin]

I think when he says "self-declared-liberal" he's excluding Libertarians
by default. A "self-declared-liberal" is just a Socialist in a Democrat
suit, just like a "neoconservative" is a Nazi in a Republican suit.

Find out how libertarian you are:
http://www.theadvocates.org/quiz.html

Cheers!
Rich

Libertarians seem to have the core political belief "I want to be left
alone." That's not as agressive as a classic angry liberal, but it's
not real supportive, either.

John