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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 5754 threads in our archives.
You are looking at page 28 of 576.
The threads with the newest articles are listed first.
Vuvuzela filter [4 articles]
BeeJeepers - 2010-06-15 17:13:00
How close is anyone to making a working electronic filter for the sound of
the vuvuzela horn which is plaguing television broadcasts of the world cup?
"If we consider a vuvuzela to be a tuba with...
Caveats for Multi Layer Boards? [6 articles]
EdV - 2010-06-15 11:12:00
I have "inherited" a PCB design from a former contractor at a start up
company. In the process of adding some more circuits to an already
crowded board (to me at any rate using Eagle for the first ...RF Generated FTL Event Horizon [6 articles]
Louis Marsh - 2010-06-15 09:58:00
I once read of someone who was experimenting with simulated event
horizons utilizing the tangential velocity generated by a circular
array of coils energized by RF ... around 2M diameter and 150MHz ...OT: Puzzling HD failures [34 articles]
Robert Baer - 2010-06-15 09:42:00
I bought three of the cheap "White Label" drives; the first one was
not recognized by the BIOS (=DOA),the second had intermittent BIOS
recognition and Spinrite 6.0 could do nothing with it (=DO...RS485 trouble [35 articles]
ScadaEng - 2010-06-15 08:17:00
I have worked allot with RS232, and other serial protocols, but this is my
first RS485 project. It seemed straight forward to me, but now I have a big
problem.
I am using the max490 chip. I'm d...Engineering wages [25 articles]
amdx - 2010-06-15 06:59:00
Hi Guys,
Might be the wrong group for this, but here's my question,
I have a nephew about 33 years old, he is a chemical engineer.
He did not just get a degree, he learned his craft and is a very...Ferrite Inductor Tolerance [53 articles]
Ian Bell - 2010-06-14 19:07:00
When winding modest inductors of a few hundred milliHenries on a ferrite
core, given Al and a number of turns, what is the typical tolerance on
the actual value of inductance when these are made i...California schools $120M solar project [68 articles]
amdx - 2010-06-14 12:52:00
Yesterday I heard a radio story about the California School district
spending $120 million to put solar energy in/on schools.
I did a Google search and can't find any info.
The numbers I heard didn...Looking for circuit design & prototyping contractors [19 articles]
Novel Defence Engineering - 2010-06-14 12:46:00
Hello,
I'm looking for people experienced with electronics design and
prototyping to help me build a control box for an invention I am
trying to develop to a technology demonstrator stage, at an ...[?] Would like to decode and display V22bis data (2400baud) [6 articles]
David Chapman - 2010-06-14 06:40:00
Hi,
I have some high-quality DAT recordings of a V22bis (2400 baud)
data exchange between a modem and a computer, which were made by
recording across the telephone line via a suitable int...