Electronics Design

OT: Covid-19 isn't the only problem that makes black Americans die younger than white Americans.

From today's Proceedings of the (US) National Academy of Science. https://www.pnas.org/content/pnas/early/2020/08/20/20...

19 comments posted 5yrs

posted by bill.sloman

19 comments posted 5yrs posted by bill.sloman

OT California is already the Green New Deal consequences

California has been shutting down fossil fuel and nuclear power plants for years, making up for the difference by purch...

8 comments posted 5yrs

posted by soar2morrow

8 comments posted 5yrs posted by soar2morrow

Medical Device Alarm

I see information about medical alarm sounds with specific harmonic content . To meet the requirement requires using od...

12 comments posted 5yrs

posted by gnuarm.deletethisbit

12 comments posted 5yrs posted by gnuarm.deletethisbit

OT The Swedish model makes sense, much to Biden's consternation

This letter to the editor was just published in the WSJ: With all due respect, I beg to differ with Dr. Scott Gottlieb...

7 comments posted 5yrs

posted by soar2morrow

7 comments posted 5yrs posted by soar2morrow

High Voltage op amp

Hi all, I need a micro power, op-amp with single supply [0...60V .. 70Vmax], I need this for a specific test equipment...

11 comments posted 5yrs

posted by h.bouazizviallet

11 comments posted 5yrs posted by h.bouazizviallet

Microvolts, how not to mess it up?

Morning everyone, It is for another high-bandwidth current measurement attempt, in parallel to the Rogowski coil resear...

12 comments posted 5yrs

posted by peter.pan

12 comments posted 5yrs posted by peter.pan

I know this is wrong...

... but I can't figure out why??? Area to perimeter ratio. Circle area = pi r^2 perimeter = 2 pi r ratio = r/2 Square a...

7 comments posted 5yrs

posted by gnuarm.deletethisbit

7 comments posted 5yrs posted by gnuarm.deletethisbit

OSP coating

I often come across products in which the PCB has several unused pads that look quite fresh and take solder readily aft...

0 comments posted 5yrs

posted by nobody

0 comments posted 5yrs posted by nobody

pretty good Amazon attenuators

https://www.amazon.com/gp/product/B07DXNRPKN/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1 https://www.dropbox.com/s...

0 comments posted 5yrs

posted by jlarkin

0 comments posted 5yrs posted by jlarkin

Re: OT: Why would bats swarm in the morning?

>https://www.youtube.com/watch?v=P28RZmZEFgA > >That's what bats look like when coming out of their caves. Like smoke >...

2 comments posted 5yrs

posted by joegwinn

2 comments posted 5yrs posted by joegwinn

Patriotic Poster

https://www.dropbox.com/s/8oefk1v8avr6l7a/Probe_Slips.jpg?raw=1

11 comments posted 5yrs

posted by jlarkin

11 comments posted 5yrs posted by jlarkin

OT Fun: Sleuth who did this schematic

Seeing Pimpom's, JL's, and others posts of hand-drawn schematics recently makes me finally get around to dumping this q...

25 comments posted 5yrs

posted by silverbeetle

25 comments posted 5yrs posted by silverbeetle

Iron Bird

A guy just called me and was talking about his Iron Bird. He's using some of our VME modules to simulate the engines. T...

5 comments posted 5yrs

posted by jlarkin

5 comments posted 5yrs posted by jlarkin

power supply switching

I'm thinking about a big new box, with three universal-input power supplies in the back. The customer wants a power swi...

37 comments posted 5yrs

posted by jlarkin

37 comments posted 5yrs posted by jlarkin

BFS17 going away

NXP has discontinued the BFS17, which is no big surprise, but now I find Infineon is listing them as NRND. That leaves...

1 comments posted 5yrs

posted by pcdhSpamMeSenseless

1 comments posted 5yrs posted by pcdhSpamMeSenseless