Electronics Forum / Electronics / July 2007

Rockwell Allen Bradley Programming Software, RSLogix 5, RSLogix 500,
RS Linx, RSLogix 5000, version 2007, 1 DVD
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The old "AB 6200" Ladder

I am looking for an inexpensive solenoid.  It needs to be a pull type
with a stroke distance of about 3 inches.  I am open to other
actuators, but I need linear movement and a spring to hold an object
in place after current has been shut off.

I want to build a high current 12Vdc PSU for powering a compressor and
came across this:
http://www.wikihow.com/Convert-a-Computer-ATX-Power-Supply-to-a-Lab-Power-Supply
or in TinyURL: http://tinyurl.com/hgj5y

Hoping for some suggestions here. I am after a few high-side driver ICs for
Automotive design app. Was looking at the IR2118 but a they are a little
pricey (and International Rectifier dont seem to offer free samples that I
can see..hehe). Doesn't have to be anything fancy or ...

I am seeking cooperator, part-time job and gaining much profits.
We are from China. And our business is internation trade by internet
for many years. Our products is best selling in Europe. And Our
products have Top quality.

i have a sewing machine motor controler  (wired in series with motor) that
uses a"carbon pile element" where pressure on the pile causes decrease
resistance
and more current to flow and at some pressure point a short by passes the

dc output switchers
since most switchers isolate the inputs from the outputs, can two separate
board outputs be paralleled together or should i use a diode summ point to
prevent sinking current back into one?  say i get two 12v 2.5 amp switchers,

I am after some information on protecting electronic design ideas.
I am outsourcing a electronic design engineer form another country because
they have a lot of experience in the area I am after.
They will be responsible for design PCB, firmware, and maybe enclosure

Did anyone see the Solid State Lighting invention on the ABC New
Inventors program last Wednesday?
See http://www.abc.net.au/tv/newinventors/txt/s1969641.htm
... or watch the video:

I am looking for a vendor for a low pass filter for around 20kHz -
ideally it would be variable between around 10 and 100 kHz. The
maximum voltage would be around 2V and it doesn't have to have any
special attenuation properties - just provide some "reasonable" degree

Does anyone have a schematic for the Tektronix TCP202 Current Probe they can
share with me please.
The manual Tek has available does not have any of the internal working
circuits...

The Toyota Prius has a key that does not need to be produced in order to get
into the car. You just have to have it in your pocket as you come close to
the drivers side door. It will let you in, and you can start the car (via
pushbutton) and go.

I have used LED's many times before but never in series.
I need to run as many LED's as possible from a 12v supply. Is there a
formula for series LED connections ?
All advise welcome.

G'day. I have a small problem with my Samsung microwave where it
occasionally catches on fire. It last occurred when I was heating 2T
of margarine in a cup. I heard a bang, then saw the fire coming from
behind a cover which is presumably where the magnetron tube is. But I

Has this place changed its name or has it closed shop?
Thanks.