Electronics Forum / Electronics / May 2008

Here is how I managed to succeed finally in installing Eagle on my E-
Machines Vista SP1 computer:
1. Download and save in the usual way.
2. The program will not install using the Run button on the Download

I just stumbled across these:
http://www.welec.de/english/05_products/products_01_overview.htm
German "Welec" brand.
Looks incredibly similar to various Agilent offerings (54600, Infinium etc)

So I would have thought that this would be a simple problem but the more
information I get the more I get confused......
I want to PWM a whole lot of LEDs. The current consumption of the bank of
LEDs is in the order of 15 Amps, at 12V.

We just switched over to DSL from modem on home computers.  Put DSL filters
on the handsets in the house and also on the cord going to the computer
modems.  When we try to receive faxes only one of the computers will even
attempt to "answer" the call.  Is it possible that the two ...

I'm doing my project in university. My project is to replace a DC
drive by a AC drive using inverter.
The old DC drive parameters are:
- Power 450kW

My Nokia phone charger has died.
It's rated 5V.
I have another older Nokia charger but it's rated
5.7V, is this difference within tolerances for the

http://spectrum.ieee.org/may08/6171
Pentagon realizes that it no longer controls who manufactures the components
that go into its increasingly complex systems. A single plane like the DOD's
next generation F-35 Joint Strike Fighter, can contain an "insane number" of

My tektronix 2215 cro just packed up! It suddenly started making a
hissing sound - which is coming from the high-voltage section in
the'scope.
Any pointers as to what this might be, (where I can get a service

I've been working with microcontrollers for a while my thoughts have
led to maybe buying a 'scope'.
This has led to the great search on 2-channel scopes that will do
reasonable speed, and the question of what the minimal requirement

I'm searching for some (simple?) Freeware Tool to visualize in 3D a Printed
Circuit Board (PCB) with components like Resistors and Transistors on it.
It's only needed for visualization and I should be able to manually draw PCB
tracks on it and make 2D screenshots of it.

My new digital FM tuner puts out too strong a signal compared to my
other inputs (TV and CD).  I want to install a dual pot between the
tuner and preamp to reduce the volume.  What is the best value pot to
use for this.  I have ordered 50K, 100K, 250K and 500K from Mouser (the

My Hakko desolder station is past it and I'm looking for a replacement. I
notice Jaycar has a new model in the latest cattle-dog. P# TS-1386. Has
anyone used this guy? It seems well priced and, assuming spare parts will be
available, could be a good buy. At Electus pricing, it ...

I'm new at this so some patience might be required, hopefully not
though :)
About to install a fluid level sensor in my car, it accepts between 5 and
12 V as input so I thought it'd be OK, good thing I realised that was

Hi all...
a transistor "BD435" is giving me 440 in hFE test on the multimeter, when
the tecnical data i've found tell me min=40 max=475...
does this mean the transistor is really in good shape?