Electronics Design

Shielding of open TEM cell

Hi So I have invested in a TEM cell to be able to do relative EMC measurements https://www.batronix.com/shop/measuremen...

28 comments posted 4yrs

posted by klauskvik

28 comments posted 4yrs posted by klauskvik

dpak fets as heaters

https://www.dropbox.com/s/8hbfb3wmc4eqcn1/Dpak_Heaters.jpg?raw=1 I can use 6 fets, 3 pairs, to heat my oven block. Casc...

17 comments posted 4yrs

posted by jlarkin

17 comments posted 4yrs posted by jlarkin

Too Funny: A Famous Honesty Researcher Is Retracting A Study Over Fake Data

A landmark study that endorsed a simple way to curb cheating is going to be retracted nearly a decade later after a gro...

4 comments posted 4yrs

posted by bloggs.fredbloggs.fred

4 comments posted 4yrs posted by bloggs.fredbloggs.fred

Record Yield from Fusion Experiment

28 comments posted 4yrs

posted by deanh6929

28 comments posted 4yrs posted by deanh6929

Highly Intermittant Production and Tantalum Caps

The boards I sell have good volumes, but highly intermittent demand. I'm currently building a crap load (in fact a metr...

64 comments posted 4yrs

posted by gnuarm.deletethisbit

64 comments posted 4yrs posted by gnuarm.deletethisbit

Some oscilloscope pictures

Shows how the power transformer is directly wired to two separate boards. Not sure how, or why, they'd want to do that....

25 comments posted 4yrs

posted by sylvia

25 comments posted 4yrs posted by sylvia

OT 3-child policy

https://www.breitbart.com/national-security/2021/08/22/china-passes-3-child-policy-into-law-hoping-to-reverse-demograph...

11 comments posted 4yrs

posted by jlarkin

11 comments posted 4yrs posted by jlarkin

the broken rod

A one meter glass rod falls and breaks into two pieces, at a random point. I) (easy) What is the mean (average) length...

0 comments posted 4yrs

posted by r_delaney2001

0 comments posted 4yrs posted by r_delaney2001

Heat Pipe Theory

Some years ago I got interested in Heat Pipes, and collected a bunch of references. The grandest reference was commissi...

0 comments posted 4yrs

posted by joegwinn

0 comments posted 4yrs posted by joegwinn

The cost of the global war on terror: $6.4 trillion and 801,000 lives

Same research group recently released findings that U.S. spent $2.26 Trillion on that horrendous waste of time failure...

1 comments posted 4yrs

posted by bloggs.fredbloggs.fred

1 comments posted 4yrs posted by bloggs.fredbloggs.fred

Susceptibility of low level audio signals to mains-borne interference

Gentlemen, In a nutshell, is it feasible to breadboard mV range audio amplifiers without suffering mains interference f...

57 comments posted 4yrs

posted by cd

57 comments posted 4yrs posted by cd

New scope

My 40 year old scope seems to have failed again the same way it did a while back - one of the X-axis drive transistors...

25 comments posted 4yrs

posted by sylvia

25 comments posted 4yrs posted by sylvia

Lyin' Biden in deep cognitive decline

He actually thinks that there is no Al Qaeda in Afganistan! Of course, that could just be yet ANOTHER one of his blatan...

1 comments posted 4yrs

posted by soar2morrow

1 comments posted 4yrs posted by soar2morrow

OT: This is why kids leave state schools dumber than a box of rocks...

Because this 'thing' is what passes for a teacher today. https://tinyurl.com/53ank2te -- "In one word, you reproach us...

17 comments posted 4yrs

posted by cd

17 comments posted 4yrs posted by cd

Bolt Recall Expanded. $1.8 Billion Now

This wouldn't be good in the best times. The local Chevy dealer has a few SUVs and one used Ford pickup on the lot. I'v...

3 comments posted 4yrs

posted by deanh6929

3 comments posted 4yrs posted by deanh6929