Electronics Forum / Electronics / March 2009

The datasheet for the N25D says that the NT1 tip is suited for the N25D.
Looking at the image of the tip, it in no way resembles that presently
in either of my N25Ds.
The first one that I bought has a screw plate holding the pencil in, the

I want to read many analog inputs from 0....24 V . I want o use one
multiplexer.
I think the 74hc4051 is the most common. My question is in case of
overvoltage

Does anyone know of someone who might be able to fix one of these in
Melbourne? I opened mine up to resolder one of the connectors, and now it's
powering up but wont display any sort of image, but I'm fairly sure it's
salvagable an I'd hate to throw it out.

Any recommendations?

I have a few simple circuits I built in a java circuit simulator I
found online...
http://falstad.com/circuit/
and I was wondering how you convert a circuit to computer code or

DSE has it on sale at the moment down from $100 to $70.
I know they sell tips for it, but what other manufactures are
'compatible' with this device?

I'd heard that adding two percent silver to the metal grids
of lead acid batteries prevents the Brown (Positive?) plate
grid from progressively dissolving with charging and extends
the life by at least double.

I just got a arbitrary waveform generator.
it didn't come with a cable. How do plug the signal into my circuit? Is
there a special coax cable I can use/buy? Can I just use the same type
of leads/cable that I use with my oscilloscope?

Sangsign Electronics (Hongkong) Co., Limited was founded in 2006.Our
company insists that
sincerity is our fundament, the customers are our god ,and finding the
best profit for each

I'm blind and hearing impaired. I need to use an equalizer in order to
understand TV. When I hook the TV through the equalizer I get a loud
hum that causes me to bearly understand whats being broadcast. If I
disconnect the TV from the cable coming from the wall the noise

On Wed, 25 Mar 2009 01:09:07 +1100, Sylvia Else wrote:

I've recently bought a D-Link DIR-300 wireless router. While
disconnecting its power supply from it, I got a tingling sensation when
I touched the plug (to be clear, I'm talking about the 5V DC plug, not
the mains plug).

If you have some questions about electronics, problem fixing, all
about integrated circuits, resistors, capacitors,
schematic drafting, printed circuit layout, simulation...
http://electronics-comp.blogspot.com/

Or maybe the question should be why do we have cables that are not
crossover.
My first encounter with this concept came when connecting serial ports
together. Turned out there were two kinds - data set, and data terminal.

Does silicon chip magazine have a download area for projects firmware?
TIA.