Electronics Design

annular ring issue

I'm planning a 4 or 6 layer board with all 2 oz copper and thin FR4 dielectrics. Given a thru-hole multi-row connector...

34 comments posted 4yrs

posted by jlarkin

34 comments posted 4yrs posted by jlarkin

rant: filenames

What do you think this is? [1] mech_eng_jw.pdf Or maybe datasheet.pdf ? And why do some PDFs page continuously and some...

88 comments posted 4yrs

posted by jlarkin

88 comments posted 4yrs posted by jlarkin

stupid is as stupid does...

Bonhoeffer‘s Theory of Stupidity https://www.youtube.com/watch?v=ww47bR86wSc

5 comments posted 4yrs

posted by eatREMOVEher

5 comments posted 4yrs posted by eatREMOVEher

Helion Energy Raise $500 million

The first paragraph: "Nov 5 (Reuters) - Helion Energy, a fusion energy tech startup, on Friday said it raised $500 mill...

39 comments posted 4yrs

posted by deanh6929

39 comments posted 4yrs posted by deanh6929

Quadratic DC-DC converters?

I need to make an isolated DC-DC switching converter with a 9:1 output range and 5:1 input range. Power is about ten wa...

13 comments posted 4yrs

posted by erichpwagner

13 comments posted 4yrs posted by erichpwagner

OT: Camilla 'hasn't stopped talking about Joe Biden ....'

It turns out the polution from Usurper Joe's motorcade weren't the only greenhouse emissions he made at COP26! https://...

2 comments posted 4yrs

posted by cd

2 comments posted 4yrs posted by cd

Bitcoin: bit by bit

My understanding is that you can earn money by searching for bitcoins using a variety of computing devices. I think the...

39 comments posted 4yrs

posted by gnuarm.deletethisbit

39 comments posted 4yrs posted by gnuarm.deletethisbit

Back to the Days of DOS

I used to know DOS pretty well. I am copying a lot of files to a flash drive for backup and need to verify what has bee...

11 comments posted 4yrs

posted by gnuarm.deletethisbit

11 comments posted 4yrs posted by gnuarm.deletethisbit

Extracting PCB strays from CAD

Hi, all, Simon and I are doing a fast avalanche photodiode front end for an OEM customer. We have a good existing solut...

9 comments posted 4yrs

posted by pcdhSpamMeSenseless

9 comments posted 4yrs posted by pcdhSpamMeSenseless

Legal definitions of homicide in the US and applicability to the accidental shooting on the 'Rust' movie set

In the US, there is no single set of terms for the kinds of homicide. The federal government has one set, and each stat...

66 comments posted 4yrs

posted by joegwinn

66 comments posted 4yrs posted by joegwinn

FP benchmark i7-10700 vs 11700 and/or Intel compiler

I'd like to ask a favour of anyone with a CPU capable of single thread operation at benchmark speeds above 3000 or FP o...

2 comments posted 4yrs

posted by newspam'''

2 comments posted 4yrs posted by newspam'''

peak at about 1.5 MHz. Air conditionning is the culprit?

In my room all my test signals are contaminated by a soft peak at about 1.5 MHz. When I connect a simple, 1-meter long...

9 comments posted 4yrs

posted by coulon

9 comments posted 4yrs posted by coulon

Mini-circuits pHEMT designer's kit

Hi, all, Just a heads-up: MCL has come out with a designer's kit with 10 each of 10 pHEMT (SAV and TAV series) part num...

10 comments posted 4yrs

posted by pcdhSpamMeSenseless

10 comments posted 4yrs posted by pcdhSpamMeSenseless

Rust shooting may be Murder

Hi, see: https://www.abc.net.au/news/2021-11-04/lawyers-for-rust-armourer-say-ammunition-tampered-sabotaged-/100595870...

23 comments posted 4yrs

posted by pallison49

23 comments posted 4yrs posted by pallison49

two suns

https://www.dropbox.com/s/y9rvhspoq3k42y5/Two_Suns.jpg?raw=1 I didn't notice the ship between the suns when I too the p...

8 comments posted 4yrs

posted by jlarkin

8 comments posted 4yrs posted by jlarkin