Recent Posts

1

Power/Renewable Energy/EV's / Re: 4 out of 5 vendors are scamming people with wrong crosssection of cables

« Last post by eTobey on Today at 12:29:34 pm »

So I bought a few meters of single-strand cable advertised as 0.75 sq.mm.
Actual measured diameter was between 0.97 mm and 0.98 mm which means 0.739..0.754 sq.mm.

Hope this helps!

I could imagine, that they wont try scamming people on this kind of wire, since it is easy to find out if its scam or not.

2

EEVblog Specific / Re: What's the keywords for finding a yellow spudger like Dave has?

« Last post by ballsystemlord on Today at 12:28:35 pm »

As requested, here's a picture. I don't think I've ever seen the full thing, just that end.

Have you tried "yellow spudger" ?

I'd feel really stupid if I hadn't tried that. That being said, sometimes these search engines can be finicky. You can search for the exact item number and not get results until you give the search engine a bigger hint.

3

Test Equipment / Re: Test Equipment Anonymous (TEA) group therapy thread

« Last post by Wolfgang on Today at 12:28:29 pm »

Some more import TEA related acronyms:

VPNHAGANE - Vintage Products Not Half As good As New Equipment
UWTERS - Unworthy Test Equipment Repair Syndrome
MPIFOAS - Mega Precision Instrument Far Off Any Standard

4

Computers / Re: Monitor VGA PC detection

« Last post by Arty.lv on Today at 12:25:53 pm »

Nevermind.
Problem solved... I just cut up some cables and made my own splitter, shoud have done this from the beginning, instead of buying chineese crap.

5

Buy/Sell/Wanted / Re: Canceled Because Thread All Shit Up by "tggzzz"

« Last post by Muttley Snickers on Today at 12:25:00 pm »

My expectations were set by the user name.  I was not disappointed.
(snip....)
This whole matter has ended up exactly where I expected it to after just having read the first post.

Which no longer exists except for that which has been fortunately quoted.   
It serves as another reminder to always quote wise lest the poster cuts once, just for good measure.      

6

Test Equipment / Re: SDS800X HD Bug Reports + Firmware

« Last post by eTobey on Today at 12:24:46 pm »

I thought it is quite obvious what is happening. I have edited that post.

We get you are showing something about measurements.

Still no explanation what exactly do you think is wrong and why do you think is wrong.

I edited that post (with the video), and put the explaination in there.

7

General Technical Chat / HART Modem Texas Instruments DAC8742H is it suitable for new Design ?

« Last post by Dingle on Today at 12:20:13 pm »

Hi
My name is Dingle ,works for a small electronics company in Manchester UK. We manufacture scinetific instruments for water industry.

I am thinking of using Texas instruments DAC8742H Hart Modem chip into our existing 4-20ma current loop based on XTR116.
It is meant to do that job, I bought their EVM kit from Farnell and evaluated it and suitable for the purpose.

My question is the availabilty of TI chips through Farnell and RS in UK / Europe market. I don't see much TI chips in Farnell / RS , though many are avilable in Mouser / Digikey. It is the same case with DAC8742H. According to Texas Instruments it is a an active chip and they  do reccomed it for new designs.
Is  Arrow.com being used my PCBmanufacturing/assembly people in UK/ Europe ?, they have facility in London. Arrow is one of the distributors of TI chips in UK. TI being one of the giants and specialised chips comes from them mainly, but why Farnell / RS don't sell their stuff ?

Let me know your expert opinion in this regard..
Thank you
Dingle

8

Projects, Designs, and Technical Stuff / Re: What is Popular smaller than 0.1 inch pin header and jumper cable

« Last post by Nominal Animal on Today at 12:11:16 pm »

Many common ribbon cables have 0.05" = 1.27mm pitch, which makes them particularly nice to use with 0.05"/1.27mm pitch headers.
2.0mm pitch headers are easier to solder to wires, though.

9

General Technical Chat / Re: H5N1 bird flu and how we're risking another global pandemic

« Last post by Wallace Gasiewicz on Today at 12:04:14 pm »

I have read about the 1918 Flu for many years. It is something that epidemiologists have focused on since then.  There have been countless papers written.   

Most of the response in 1918 was the same as the response in 2020.  It was just as ineffective.   
Only the death rates were far worse during the 1918 Flu.   
As I recall, there were a few isolated small communities in the US that did not become infected. They closed off all contact with the world early on.  Masks and "social distancing" did not work and were discarded by the populace. People ceased to listen to the authorities.  Also WW1 was raging and took all the media bandwidth (except in neutral Spain, where they reported on the Flu.)   
This Flu took many more lives than the war, however. There are all sorts of death data that can be inaccurate , but the death toll was horrendous. Probably 4% of the world died.

The COVID virus is a different virus than the H1N1 1918 virus.  Different Genome.   
1918 virus targeted healthy young people, unlike yearly flu. COVID targets older people, like yearly flu.       


There are all sorts of Hypotheses about why 1918 targeted young healthy adults. One Hypothesis is that the older population had some immunity due to previous Flu epidemics.   
 Another one states that the younger population had altered (bad) immunity due to previous infection but not good immunity because they were not old enough to have had an older previous Flu that offered at least some partial immunity.   

These are just rational "guesses" and please do not hold me to these Hypotheses. I do not believe anyone knows for sure.   
Also, I am purposefully not commenting on the various "vaccines".

10

Beginners / Re: How Current Limitation is happening in the circuit???

« Last post by xavier60 on Today at 11:55:16 am »

Sir,

I will check whether they are parallel.

i had 10ohm 50watt. i had an idea of keeping 20V output and check.

thank you.

Also include what test you might have in your profile or signature. It will save anyone having to ask.