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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 5918 threads in our archives.
You are looking at page 6 of 592.
The threads with the newest articles are listed first.
"tweaking" a fixed 3-pin regulator [13 articles]
lektric.dan@gmail.com - 2010-09-01 01:49:00
How does one slightly adjust a fixed-voltage 3-pin regulator? I've
got a 5 volt (7805) that I'm using to drive a voltage divider (no
current, just a control voltage). The circuit should go from 0-...
Heating in 4-1/2 turn inductor [43 articles]
amdx - 2010-09-01 01:31:00
Several years ago while making inductors for tuning a class E amplifier we
end up with a 4-1/2 turn inductor. The inductor used a 3F3 potcore, gapped I
think,
but it has been awhile. The inductor ...reasonably finished generator project
Jon - 2010-08-31 21:39:00
I got this thing partly installed already. It tested out ok on the bench.
Now I'm just waiting for funds to buy some 8/3 wire for 50 amp feed, the
last step to completion. If I had to do this ag...line driver with automatic bias [44 articles]
Ban - 2010-08-31 16:04:00
features AB/operation of the output transistors with a bias current of 1.5mA
(set by 15k). The complementary pairs should have a similar beta. To have a
symmetrical clipping at around +/-11.5V a zen...GuruGram #109 newly available for free download [5 articles]
Don Lancaster - 2010-08-31 14:49:00
... at < http://www.tinaja.com/glib/gjstab01.pdf >
It is on avoiding blowups when doing Gauss Jordan solution of linear nxn
equations.
Sourcecode is separately available at <
http://www...analog computers [12 articles]
John Larkin - 2010-08-31 10:15:00
http://www.adi.com/pdfs/Howe2June05.pdf
John
...PVC as radome [27 articles]
blanker - 2010-08-31 04:06:00
Hello,
I am attempting to use a schedule 40, grey PVC pipe as an antenna radome,
and am concerned about RF losses.
My application is a UHF transmitter with an output power of 40 Watts (46
dBm) ...Phase noise [4 articles]
Andrew Holme - 2010-08-30 20:07:00
I've seen this formula quoted without explanation by two different sources:
P/N(dbc)= PNF+20logN+10logFr,
where
PNF is technology dependent Phase Noise Floor.
N is the main division rate.
Fr is...Energy Saving Tips
.. - 2010-08-30 12:21:00
1. Reduce heater's room temperature
For each extra degree (Celsius) of temperature, your heater will
consume 7 to 11%
more energy. Adjust it to 18degrees which is also better for your
health.
2. ...