Electronics Design

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Ground Penetrating Radar

I had an opportunity to pick up some of this kit, cheap. But, couldn't come up with a *use* for it! "Domestically", it...
15 comments posted 4yrs
posted by blockedofcourse
15 comments posted 4yrs posted by blockedofcourse

Pinging John

Not that you will ever need it, but here is a link that will allow you to track storms entering your area. This is the...
5 comments posted 4yrs
posted by spamme
5 comments posted 4yrs posted by spamme

Grid Stability and Renewable Power

Is there some fundamental reason why renewable power sources on the grid can't provide the equivalent of "inertia", to...
32 comments posted 4yrs
posted by gnuarm.deletethisbit
32 comments posted 4yrs posted by gnuarm.deletethisbit

Ultrasonic Humidifiers Will Kill Your Computer

If you live in a cold climate, you may run into problems with low humidity in the winter. This causes sore throats and...
13 comments posted 4yrs
posted by spamme
13 comments posted 4yrs posted by spamme

Keyboard Boot Virus?

I recently ran into a major problem. I have been having problems with 100% cpu overload on Youtube. This cripples the v...
40 comments posted 4yrs
posted by spamme
40 comments posted 4yrs posted by spamme

Fiery Car Crashes

https://ktla.com/news/local-news/2-killed-in-fiery-crash-on-60-freeway/ What the heck is going on with these dangerous...
0 comments posted 4yrs
posted by gnuarm.deletethisbit
0 comments posted 4yrs posted by gnuarm.deletethisbit

Wireless Alarm

I would like to cobble together components to make a wireless alarm Motion sensor, transmitter, receiver all battery op...
6 comments posted 4yrs
posted by Billy
6 comments posted 4yrs posted by Billy

How it's made: heat sinks

I thought they were extruded, but no! Like carving a turkey dinner
122 comments posted 4yrs
posted by user
122 comments posted 4yrs posted by user

Cross-posts

As an aside to the SED regulars, it would probably be a good idea for us to confine our responses to SED rather than ac...
4 comments posted 4yrs
posted by pcdhSpamMeSenseless
4 comments posted 4yrs posted by pcdhSpamMeSenseless

Where can I buy a large analogue meter?

Where can I buy a large analogue meter? Big enough to show to a room of people, about a foot long pointer.
353 comments posted 4yrs
posted by CK1
353 comments posted 4yrs posted by CK1

Max current for a JFET connected as diode

Hi; I've been using N channel Jfets connected as diodes for input protection for a long time. Everything seems to just...
38 comments posted 4yrs
posted by neo5...
38 comments posted 4yrs posted by neo5...

interviewing

When you interview job candidates, you pose standard problems, of circuits, PSpice, maybe Mathcad, etc. Textbook stuff,...
69 comments posted 4yrs
posted by r_delaney2001
69 comments posted 4yrs posted by r_delaney2001

Tesla is fast

Today the electric cars are the quickest on the road. The classic petrol muscle cars are vying for the silver medal. Wa...
626 comments posted 4yrs
posted by r_delaney2001
626 comments posted 4yrs posted by r_delaney2001