There you go. You know that I haven't got a job because I've told you.
As opposed to Jim Thompson and John Larkin who emit an almost
Dimbulb, it's a rant anytime you reply five times to a single post.
AlwaysWrong knows nothing about anything, as usual.
Where are all tne investigative reporters? On vacation? Hiding under
Post something and show us. Something not 20 years old.
Sorry, dumbfuck, but your opinions, just like your facts, are generally
You're an idiot for counting, and a retard for thinking that it has any
Convenient evasion. You'd rather talk about climate and economics,
You conclude that we don't use autocal from the fact that I don't talk
I used to do most of my funky timing things with a little box containingOn Sat, 26 Sep 2009 16:17:44 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:
John Larkin wrote:
On Sat, 26 Sep 2009 14:05:08 -0400, Rich Webb
bbew.ar@mapson.nozirev.ten> wrote:
On Sat, 26 Sep 2009 07:50:43 -0700, John Larkin
jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:
I've never used a logic analyzer. A digital scope can spot the obvious
glitch-type errors, and all a LA does after that is force you to do
the thinking you should have done in the first place. They take so
much time to connect and use, it's a lot quicker and easier to just
think.
Sometimes the danged datasheets need interpreting, though. Running up an
I2C channel on a new processor family that needs to chat with another
never-used slave device and "Did I understand all the registers and
results on both ends of this correctly?" It's awfully handy to be able
to connect onto SDA and SCL, and then tell the analyzer that those two
are an I2C channel.
Two good quality digital multimeters, preferably one with 4.5digit and <0.1%
Multiple power supplies.
A basic 2MHz function gen.
An ESR meter.
The fungen+scope IS an ESR meter. And a lot more. But personally, I
very rarely need to measure ESR.
I'd vote for an AADE LC meter instead.
The usual breadboard, parts and hand tools etc.
And good lighting. And a enormous power strip or three.
And a whiteboard on the wall within easy reach.
And a stool for the cat(s) so they have a place to nap instead of on the
workbench!
And everyone, absolutely, needs one of these. Or three, to be safe:
http://www.highlandtechnology.com/DSS/P400DS.html
Yep, almost as necessary as the beer fridge.
(Your model is a great deal better than the old SRS one I used to have,
which had 5 ps settability and 200 ps jitter. And people think that
only delta-sigmas have that kind of specsmanship.)
We get down around 5 ps RMS jitter for short delays. The SRS
clock-quantization-compensation technique is inherently tricky for
both jitter and insertion delay. A couple of ramps have to be
perfectly linear and perfectly matched, and that's hard to hold
long-term. We just start a burst oscillator at trigger time and work
off that.
But seriously, everybody should have a pulse generator of some sort,
an old HP or Philips... something with a rate generator, pretrigger
out, delay, and width. Great for pulsing fet gates and relays and
logic and such.
John
Since I'm complaining that you don't draw logical conclusions from the
You're projecting again DimBulb. *You* are AlwaysWrong.
I know it's hard for you to count so high, DimBulb. If you'd stick to
On Obama's staff.
In fact, you have talked some about it. As usual, Slowman lies.
I test drove the latest Xilinx stuff a month or so ago. It's a lot
The preferential name is "Nymbecile". Please be sure to use it ;-)
480)460-2350 Fax: Available upon request | Brass Rat |Sorry, I'll try to include it from now on. "AlwaysWrong" just fits
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components connected to the circuit that could be affecting the
none of them, either
The eprom holds the code, same for all units. The cal factors and
Genuine calibration has to be tracable to - in the USA - NIST primary
These aren't very big. Their on/off ratio can't be touched by any
It's not crude, it's elegant. Max duty cycle is controlled by design,
Positive-to-negative inverters are rare, especially at 12 volts and
That's not auto calibration, that's just replacing trim pots and screw
Sure. I've done all of that, and laid out a one or two printed circuit
Relays? Couldn't you use some kind of analog switch? Relays do have
Pretty crude. You use the +5V rail plus the Vbe of Q1 as your voltage
As usual, krw doesn't know what he is talking about. If I were to ask