Electronics Forum / Electronics / March 2005

Mr. Ansary should be commended for his inclusion of antibiotics, AKA
penicillin, as the greatest, IMHO, if not 1 of the greatest, inventions.
Before its widespread use, most people died of septicemia, aka
infection, during wars, rather than from bullets.  You, the reader,

hi, any body know where  there are any diy drivers for the luxeon  leds ???
l have a 6 volt hand held  rechargeable spotlight with a 55 watt  bulb.
i want to put in a luxeon 5 watt or more led, but need a suitable driver.
any one ???

Is it possible to successfully repair a torn VHS video tape?
I tried to purchase a tape repair kit today and it appears they are not
available now - at least at the shops I tried.
Jackie

http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&category=1504&item=7503605140&rd=1
ebay item no 7503605140
Moving house, hope I can find it a home, I'm without a shed or
workshop at the new place.

I have a nearly new cell phone jammer for sale - range is
approximately 30 metres in radius. Model MONIX MGB-1S cellular Jammer.
Used only one week ( and then the tenant was gone! - hint great for
getting rid of loser tenants who depend on their cell phones for

Instead of passive sensors reporting back to an active control
box/panel with a siren, why not a distributed system with each sensor
containing its own siren?
If one sensor is tripped then it sends out a signal and all of the

I'm putting together a circuit board to take in 12V at less than 1/2 amp
from a wall wart.  The unit will have a power jack to suit.
In this design a fuse will be very large or non-resettable or expensive.  I
already have a diode so reverse polarity won't be a problem but what ...

I have a impedance matching problem that I need help with.
I have a 1Mb data transmission system that is designed to work with 100-150
ohm cable, We would like to use it on 55 ohm cable.
If anyone thas has a good understanding of transmission line theory and

A friend was at Harvey Normans the other day, purchasing a plasma screen TV.
After they'd negotiated the price - about $4,400 for an LG highish-res
panel, the sales guy then suggested they purchase a special component cable
for hooking up their DVD player to the screen to achieve ...

If you were limited to only using transistors and other
standard discrete components how big would a typical
home computer be?

I am desperately looking for stk 4171 2 no's can anybody help me.
shanks

Greetings group.
Sanyo ctv model CP21SA1.
All functions work fine except the picture is
black and white using the av input sockets.

Alright - I am not sure if this would be the correct newsgroup - if not,
please point me in the right direction - thanks!
I have had a catastrophic power supply failure in my PC and I would like
to know if this type of scenario is uncommon and what exactly might of

I've had a DSL line for a year or so, supplied by SBC Internet
Services, and I'm really pleased with it.  I was using another ISP for
outgoing email and news, and yesterday I decided to save a few bucks
by dropping the other ISP and running everything through SWB. No

Hi All, I have several of these DVD Players in for repair with the same
fault.
OK when cold but when they heat up they will freeze and not turn off, or
just stop or no screen.