Maybe something to do with compliance to GDPR?
Just a thought, maybe a long one...
Dan
This struck me as a bit odd - an EU3458A 8.5 digit multimeter. I thought at
first that perhaps it had been re-engineered to use lead-free solder, but
on reading the description, that's not the case.
https:
FYI,
Ramtron was acquired by Cypress Semiconductor. I've had trouble finding
some FRAM parts, but that may be changing as Cypress scales up production.
Also, watch out for fraudulent parts on ebay. I've ended up buying a
couple things that were bad, although not ramtron parts.
Anyway, Keep
Aluminum...
Even with everything done right, with approved hardware, aluminum wiring
will tend to 'creep' (Aluminum mushing out of the way of the lug screw
or clamp.
Just recently I checked the main lugs on my 150A garage sub panel, and
sure enough the neutral lug was loose. This was about 8
On 8/9/2017 12:00 PM, volt-nuts-requ...@febo.com wrote:
I have trouble believing that the precision WW resistors
in the oil bath did go low. I wouldn't presume to argue
that you didn't measure them right, but there has to be
something other than their value drifting low. WW
resistors usually go
I'd avoid alkaline batteries. I picked up a high resolution data logger to
monitor some long term voltages, and as it had extra channels I hooked up a
battery to it. The battery was meant as a sanity check. As it turned out, the
battery made a really nice thermometer!
It turns out the referenc
On 12/14/2016 7:18 AM, volt-nuts-requ...@febo.com wrote:
Our company has been committed to Eagle for about 5 years. The problem
you face is that your investment in IP (schematics, board layouts,
component libraries, etc) vastly out-values the software. With a
proprietary system, you're either
On 12/13/2016 12:00 PM, volt-nuts-requ...@febo.com wrote:
If you don't have any personal preference, then
KiCad is definitely the way to go. It has improved
dramatically since it got the CERN treatment and
doesn't cost a cent regardless of size and layers.
I haven't run PCBArtist, however it s
Hi,
How much would you be asking for this?
Dan
On 10/31/2016 12:00 PM, volt-nuts-requ...@febo.com wrote:
Message: 3
Date: Mon, 31 Oct 2016 15:22:41 +0100
From: Andrea Baldoni < >
To: volt-nuts@febo.com
Subject: [volt-nuts] FS: NOS Agilent 34401A
Message-ID: <20161031142241.ga27...@sol.e
Andrea,
I'll pull some off the roll and send it, as long as shipping isn't a
major issue. No need to send it back. Email me a mailing address off line.
SN100C flows more like eutectic tin/lead, albeit at a higher temperature...
Dan
On 7/7/2016 12:00 PM, volt-nuts-requ...@febo.com wrote:
Me
On Sun, Jul 03, 2016 at 12:33:04PM +0200, Andrea Baldoni wrote:
Hello.
I repeated the experiment with a better setup, I also added
some alloys that are already arrived. So far, a really "low"
EMF solder hasn't been identified.
Measurements have been done between water ice point and boiling
p
Hi,
The first question is, what do you need to power that's 2KW? And what
ever that is, do you need that much accuracy at 2KW! :)
Having a couple of 1.2KW power supplies on the bench as I type this, I
tend to agree that that level of accuracy probably isn't needed. If this
were my supply, a
Hi,
20 bits is ~1ppm resolution. 1ppm is pushing stability for most
references, is it not? I would think that at 24bit or more the reference
is more of an issue than the DAC itself. As I recall, sub PPM/C
references already eat up your budget and then some! One would guess
that as soon the fu
On 5/15/2015 12:00 PM, volt-nuts-requ...@febo.com wrote:
In this paradigm shift I think Keysight is better then most.
In my experience Agilent/Keysight has been very good. Had a signal
generator long out of warranty, develop a problem with a front panel
encoder. When calling for a replacemen
Have you looked at Kicad? It is used by both professionals and hobbyists,
and being open source, is not reliant on RS to update it.
Now there is a decent open source PCB layout program, I would not suggest
anyone learn a new proprietary package unless there were very good
reasons, such as an
Hi,
We have the professional Eagle at work. I also own a pro copy at home.
The learning curve is a bit steep, but we have done some pretty neat
stuff with it. It's more than paid for itself at home and at work. It's
not really a cheap cad package, but it's also not the high end cad. Sort
of a
Andreas,
If I proceed down this path, it will be a learning experience. As with
most learning projects, a bit of 'overkill' is usually present.
It's just plain old fun to over engineer something! :)
The LM399 does look like a nice package. Do they all come with the
thermal shield, or is that an o
Rob and Andreas,
Thanks for the feedback. You both brought up plastic housings as a
concern. It was an issue in the back of my mind also.
Rob,
I did get your email directly, but not the one on the list. Weird.
Andreas,
I always see references to the LM399 and LTZ1000. I was just going
throug
Hi All,
I'm working on something that requires a stable voltage reference.
Long term stability isn't needed, but good thermal stability is. In
other words it would be nice to have sub ppm/C temperature, but a few
ppm/month or even per day isn't an issue.
Anyway, it got me thinking about building
Hi,
I'm assuming you're talking win7x64 or something modern and nothing
silly like WinXP x64...
One possibility may be to run a Virtual Box with XP on it. Virtual box
can grab USB devices and redirect them to the virtual PC, which could be
XP or whatever else you install. I've found it to work qu
>
> On 04/30/2014 02:01 PM, ed breya wrote:
>> When I applied for the permit from the
>> county, this caused nothing but grief and confusion - they didn't
>> understand, and neither did PGE, why anyone would want a second meter.
>
> At my last house when the place was rewired after a fire, I ant
Some of the microchip dsPIC's have high speed PWM. Specifically the ones
for digital power. The timing step resolution is 1.04nS. (Yes, that's
almost a 1GHZ clock rate). I'm sure they do it with a ring oscillator
locked to a lower frequency source, but the resolution is there, even at
high speeds.
This one looks more complex than you describe.
However, I have one of the more simplified units, as you describe (At
least, I think I do), which I would like to learn more about...
Dan
On 8/24/2012 8:00 AM, volt-nuts-requ...@febo.com wrote:
Its a potentiometer used to measure dc voltage.
A
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