Electronics Design

OT: Internet Speeds

I'm on a small local company for wireless Internet access. Normally the sp eeds are adequate and I don't notice problem...

7 comments posted 6yrs

posted by gnuarm.deletethisbit

7 comments posted 6yrs posted by gnuarm.deletethisbit

OT: CV Looking Forward

It is not clear how to project mortality numbers in the US. We are present ly at 482,000 active cases with 30,000 recov...

7 comments posted 6yrs

posted by gnuarm.deletethisbit

7 comments posted 6yrs posted by gnuarm.deletethisbit

OT: Lock-Down

Anyone getting fed up with the lock-down yet?

48 comments posted 6yrs

posted by cd

48 comments posted 6yrs posted by cd

OT: Coronavirus statistics: what can we trust and what should we ignore?

Article is written by two heavyweights: Sylvia Richardson, director, MRC Biostatistics Unit, president elect of the Roy...

0 comments posted 6yrs

posted by spamjunk

0 comments posted 6yrs posted by spamjunk

Nice tube amp with schematic

This guy is pretty smart on tubes.

6 comments posted 6yrs

posted by DecadentLinuxUserNumeroUno

6 comments posted 6yrs posted by DecadentLinuxUserNumeroUno

Hack a datalogger into existing design

Pretty sure the answer is "Yes", but let me ask it anyway.... Situation: Need to add a datalogger to an existing design...

4 comments posted 6yrs

posted by mpmillard

4 comments posted 6yrs posted by mpmillard

Anyone have a good mutual NDA they can share?

As title, looking for something that is reasonably fair to both parties, not the usual master-slave boilerplate bs. Than...

26 comments posted 6yrs

posted by spehro

26 comments posted 6yrs posted by spehro

PWM controllers... shopping

Seems like every time I start a new power design, I waste a bunch of time l ooking for the ideal PWM controller. At the...

58 comments posted 6yrs

posted by danluster81

58 comments posted 6yrs posted by danluster81

OT: Relative virus size?

Back of the napkin calculation... virus to human vs. human to sun?

18 comments posted 6yrs

posted by galt_57

18 comments posted 6yrs posted by galt_57

Face masks , technical

Hi Linds, Kim, Taz I found this current article by the modern N-95 mask's electret filtration's inventor of interest, a...

1 comments posted 6yrs

posted by charlie

1 comments posted 6yrs posted by charlie

SFP test board looks OK

https://www.dropbox.com/s/ojxsjwgjyalcwjf/Z482_SFP_2.jpg?raw=1 https://www.dropbox.com/s/takdrcg3l1ys8me/Z482_SFP_1.jpg...

0 comments posted 6yrs

posted by jlarkin

0 comments posted 6yrs posted by jlarkin

80% of NYC's coronavirus patients who are put on ventilators ultimately die, and some doctors are trying to stop using them

Dr. Tiffany Osborn, a critical-care specialist at the Washington University School of Medicine, told NPR on April 1 tha...

29 comments posted 6yrs

posted by bloggs.fredbloggs.fred

29 comments posted 6yrs posted by bloggs.fredbloggs.fred

Small Schottky diodes at very high currents

We're making fast 200 to 350-amp LED pulses with RIS-796 circuits (discussed here multiple times), and at switch-off th...

9 comments posted 6yrs

posted by winfieldhill

9 comments posted 6yrs posted by winfieldhill

switcher LC output filter problem

Driving an LC network as so to generate a sine: I'd like to calculate some values that make a nice sine into the ground...

6 comments posted 6yrs

posted by user

6 comments posted 6yrs posted by user

OT: N95? Humbug.

Only good for 95% of particles larger than 0.3 uM. How about a mask where you breathe through a chamber containing a st...

16 comments posted 6yrs

posted by galt_57

16 comments posted 6yrs posted by galt_57