Electronics Forum / Electronics / December 2005

Looking around the 'net, it seems that it is ridiculously expensive and
difficult to do home-automation in Australia. As we use 240v/50Hz rather
than 110v/60Hz, we can't the US stuff .. which is a pity as it is *much*
cheaper.

I have a Samsung dvd model DVD 709/XSA
DVD will play although it seems to have a jump or pause in the picture/sound
every few seconds
This coincides with the servo motor disc speed slowing down, i can hear the

I am in the process of moving & need to get rid of an oscilloscope.
It's a 10 mhz Heathkit dual trace from the late 70's.  I know, not
worth much in $$$ (looked at selling it on ebay, where similar units go
for about $20, it's not worth the time/trouble to pack properly for

Hi, dabbling with some TTL stuff that I dug out of storage. Im about 25
years rusty since I tinkered with this stuff all those years ago. Anyway,
working on a project where it would be deal to have a 555-timer based
monostable multivibrator (with retrigger ability.) Is that possible ...

Reasons for creating a new newsgroup.  From the posts I have
made to alt.binaries.schematics.electronic , the realization
is a.b.s.e is not suited for many multipart files. PDF binaries
are large and have been posted, but I can not u/l large files,

What's the maximum distance an S-video cable can run and what's the best
type of cabling to use?
For my church I want to run an S-video feed to one of the FOH
projectors, currently we have a composite feed running on a nice 30m

Does anyone know what is the RRP of the iriver h10 5gb, and where they
are available the cheapest ??????  Have tried too many stores.

Depending on the price I may want to build my own coax video
cable to connect a "standard" tv to dvd player (and other things).
The video jack is an RCA.  It's marked with a yellow band
(impedance spec?)  What coax cable type is best for

I made a jacob's ladder with a 2 MOT stack, inductive ballasted to 40
mh shorted, bare 4ga wire electrodes, 13.9 Mohm Gabriel electrode
(yeah, I know that's too much). If you were wondering, I wear
sunglasses and I have some experience, though not with rising arcs.

I have been trying to build an Infrared strobe. I have been able to make the
diodes flash off and on using a 555 timer circuit. But I can not make them
strobe....I'm missing something here ????
What do I need to do to make the IR diodes STROBE BRIGHTLY not just turn off

MY GOOD FRIENDS,
....  GET OUT WHILE YOU STILL HAVE TIME FROM THE EASTERN COAST PACIFIC
BORDER AS FROM DEC 27.
I WANT YOU TO HAVE REACHED THE 150 AMSL AND 20 MILES INLAND MARK BY THAT

Anyone seen this? It's a USB based turntable for copying traditional
records to a computer or digital recording source....
http://www.engadget.com/2005/12/05/ions-ittusb-usb-turntable/
Looks like an interesting gadget to be sure, if only those boxes of

I have a problem -- output voltage of 230V -> 9V transformer is not 9V,
but around 14V!
A couple days ago I have bought a small 230V to 9V transformer, it
looks like this:

If this is the wrong group for this question, I'm sure you will all
tell me to sod off, so ...
My mail box is a few hundred yards from the house. I'd like to put a
micro switch in the box, and switch on a low power (milliwatts)

G'Day All
I am using some of the chinese DVM's in my vehicle to monitor a solar setup,
(volts and amps). However they cannot be used powered directly from the
vehicle batteries etc.