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Sci.Electronics.Design
Sci.Electronics.Design is a worldwide Usenet news group that is used to discuss various aspects of Electronic Circuit Design.
There are 5027 threads in our archives.
You are looking at page 11 of 503.
The threads with the newest articles are listed first.
PLL Breadboard Issues [15 articles]
Chris - 2010-03-02 18:02:00
I bread boarded my PLL yesterday. I was able to get it to lock just
fine on a multivibrator running at 33Hz. I was able to solve the
jitter problem by using a very large value for C1 (1000u). Ho...
Where can I find a computer like this? [37 articles]
Green Xenon - 2010-03-02 17:45:00
Hi:
I'm looking for a laptop that:
1. Does not have any non-volatile RAM
2. Does not need any non-volatile RAM to run properly
3. Compromises among the following:
3a. Is the least expensive
...Help with avoiding ground-loops on my PCB+external [8 articles]
digitaljanitor - 2010-03-02 12:23:00
All,
Apologies for the cross-post, I know a lot of people who deal with
FPGAs are also experts with PCBs, stack-ups, high-speed layout, hoping
for some good ideas from both groups. I'm not an ex...Let's see how stumped JL et al. get this time [19 articles]
Tim Williams - 2010-03-02 12:13:00
http://webpages.charter.net/dawill/Images/Fast_DCDC.gif
Runs at 435kHz at 2W maximum output.
Tim
--
Deep Friar: a very philosophical monk.
Website: http://webpages.charter.net/dawill/tmora...qualitative electronics [2 articles]
Jon - 2010-03-02 09:53:00
I don't know the difference between a pnp and an npn, but I had a
transistor. All I knew was the middle terminal acted like a valve for
current to pass between the outer terminals. So how did I ...2 circ. pol. fields at 90 degrees [3 articles]
Mark Roberts - 2010-03-02 06:46:00
Can someone with a better grasp of vector dynamics than myself please
tell me what occurs interactively when two identical circularly
polarized EM fields meet at right angles?
Do they cancel or t...Stealth chopper blades [9 articles]
amdx - 2010-03-02 04:01:00
http://www.popsci.com/technology/article/2010-02/video-eurocopter-introduces-silent-rotor-blade-stealth-choppers
?
Mike
...Today's Fixit Problem [13 articles]
Jim Thompson - 2010-03-01 18:35:00
Today's Fixit Problem...
http://analog-innovations.com/SED/TodaysFixItProblem.jpg
Sonic boom: Fluorescent fixture in the laundry room breaks loose from
ceiling on one end :-(
Was dangling do...Looking for simple way to demodulate a 40Khz signal [20 articles]
lighthouseman - 2010-03-01 15:58:00
In a project I'm working on, one of the signals coming on to my board
is a serial bitstream modulated with a 40 kHz square wave.
Where presence of 40 kHz = '1' and no signal = '0'.
So basically...Infrared LED / detector design [40 articles]
Matt - 2010-03-01 14:03:00
Hello. It's been a while since I've posted. I'm working on an Ir LED /
detector for a small robot platform I've made. I'm just having fun
really, and learning!
I've read a considerable amount a...