Electronics Forum / Design / March 2006

Tried the usual sources, Harwin, Molex, Tyco, to no avail, any other
suggestions?
They seem to be made of Unobtainium
martin

I am working on a project where i'm looking to deliver power from a
12vdc, approx 10A, battery to a mechnical relay which will switch when
i send a signal from my microcontroller.
The catch is that, as most linear actuators need positive and negative

Anybody found Amazon's "So You Like To..." Guide useful?
Recently, I visited the website to search for some references, and I
found quite a few informative and interesting reader-supported guides.
Here are my favorites:

I am having the following problem shown in this diagram, and have a
solution that I think might work - but I am not sure.
Here is the diagram:
http://img207.imageshack.us/img207/1161/kbproblem4bb.png

There is no body contact in fully depleted SOI CMOS, right?

How to  test the saturation current of a commonmode inductor

After some struggling with other details, I finally come back to the input
sampling gate of my low noise preamplifier.
So I need a low R, *low* Qinj, low leakage switch in a high impedance (Gohm)
chain.

Hello, I am designing a switching power supply and I need ferrite core
for the 100KHz transformer (EE19 Type) . I was looking for it on the
web but I just found manufacturers that sell it by hundreds or
thousands. Does anyone knows some distributor who sells by units?

What are the pros and cons of the various DC-DC step-up converter
designs (say, 12V to 18V, 50 watts total)?
I could use one for my old laptop (366 mhz, it wants 18V @ 2.7A).
I went to this website:

I'm starting a project that would emulate a DVD drive on an IDE bus for
the purpose of being able to use a USB flash drive in a DVD player. I
will be using an x86 single board computer (Prometheus-LC) with DOS on
it and programming it with turbo c. I'm using a apex 600a (Havn't

Recent research published in Nature and Science has demonstrated that
the H5N1 bird flu virus is capable of cell fusion reception only with a
particular subset of cell to be found in deep lung tissue, hence
explaining the improbability of transmission between humans as this

Hello to all,
I think I've put on a wild goose hunt. Perphaps somebody in this ng can
help me:
Has anyone heard of measuring a human's body (electric) impedance to

I'm doing an analysis / simulation of a tube Hartley oscillator, shown
below. (full circuit from Sept. 92 issue of QST, also in _QRP_Power_)
My problem is that I don't know how to treat the coil, mathematically.
I asked some of my professors, but they couldn't give a satisfactory

I'm sure this exists already, just looking for pointers.
Say I've got a room full of ten people, each of whom has a phone (a
call center).
Let's say one person now wants to take a bathroom break.