Electronics Forum / Electronics / August 2007

Does anyone know where I could buy a cheap DTMF tone generator?
I think that's what they are called. They used to be used to enter touch  
tone phone sounds into the receivers of dial pay phones so you could  
access your answering machine.

I'm trying to decide if I should buy Eagle or not. The program itself
seems pretty decent, but I'm having trouble getting the resulting PCB
made. My usual manufacturer is Fastrack. When I sent them my Gerbers I
was told they weren't any good - the tracks looked OK but the holes

AutoTRAX Schematic/PCB designer free version for students with no
restrictions!
AutoTRAX 9.08 is now available from
http://www.autotraxEDA.com

I fear that to explain the full extent of my problem, I would need to
post under a false name to spare the embarrassment :-)
To simplify, I have built a couple of boxes to switch between multiple
audio/video sources to a single output and they all work fine. What I am

HI@all here!
I have this MKII ESR- Meter in use and I need the customized processor
build by ZILOG. Unfortunatly I swapped the test leads from my
mutimeter to control the mains cap in a tv-set and my MK2 said

I have a problem with my old tube Telequipment 43A oscilloscope, I use a
sine wave generator who work perfect and have only .01 % distortion, but
wen I feed my oscilloscope with any sine waves it's kind of oscillating
alway's at the right side of the sine wave in the screen of the ...

How much time the laser head of a Denon DCM420 cd player are lasting ?
Thank
Gaetan

By this in particular how does the Electricity Company interrogate the
Meter and how do they send data to the Meter to change its tariff.
There seem to be numerous places in Australia using smart electricity
meters but all are very vague about how the Meter communicates with

Want to make money for surfing the net?
I know what you must be thinking, great another cash scam, I thought
the same at first too but this is real and legal! This is not spam
either

I have a PVR just out of warranty. (Drat! :( )
Anyway a recent power surge didn't agree with it, and its 5V and 12V
supplies are now 5V regulated and 17V unregulated. :(
The P005RD11 I think is a 4 terrminal voltage regulator. I guess I

will the new auction for this "found free airspace" be of use to anyone
betyond cell/commercoial users?

Silicon Chip have just published construction details for a nixie tube
lock  -  a popular DIY  project back in the early 1970s.
But have you ever seen a nixie tube watch ??
http://www.amug.org/%7Ejthomas/watch.html

Today I was reading a Silicon Chip magazine and I pondered about Tom
Moffat and what he was up to lately, since he always wrote fascinating
articles for the various magazines. Anyway, by pure coincidence I was
reading the WIA news on the radio newsgroups and I discovered that Tom ...

Hey everyone
Ive got an old ati tv tuner card which has always had a problem with
noise bars. It works perfectly fine but the noise bars have always
bothered me.( I could buy a new one but Im cheap ) Anyway, according

Mind Control and Directed Energy Weapons
Do you know Mind Control Weapons and Brain Washing (such as CIA Mind
Control Project : MKULTRA) ? Do you know voice can be transmitted to
human's head from long distance(V2K)? (In 2002, the Air Force Research