Electronics Forum / Electronics / January 2006

Probably a dumb question, but found a site about transistors. They showed a
PNP as being between +V and a load, and a NPN as being between the load and
ground. Is this a conceptual convention or is this really neccessary? Can a
NPN be place between +V and ground. In dabbling with my ...

   Hi Group , I need to know what type of varnish is used on electrical
windings . I have several projects that will require varnish coated
copper wire . Thanks in advance for any good help to my question . Rick

Supposedly in 2008 we will lose the normal analogue 'free to air'
TV channels. They are then going to leave us with full digital TV
and that's about it.
One thought does arise from this and this may sound, and probably

I live in a house built about 20years ago, Yesterday i decided that the
BC light fitting had to be changed in the kitchen The existing light
output is dismal even with a daylight CF.
So i changed it for a 4' fluro. the wiring in this house uses a

I've now cat5'd my house, put good speaker cable around and decided
against running shielded (I'll use the network)
However, while I don't have a projector today, I'd still like to run
cable through the wall.

these are working except for the tape drives, pass self test, are NOT
equipped with RS232 interfaces.  Typical used cosmetic condition, no missing
keys, etc.  No pods or probes included.  Shipping included in continental
US; extra for AK HI PR CAN overseas

My son picked up an IBM G50 monitor the other day as fill-in while his normal
monitor was awaiting a HOT replacement.
Focus was off, so I went to split the case and had more than the usual trouble.
Then I spied a very neat hole in the side, lined up with the focus pot.  Very

I am writing a program that outputs DTMF tones from my computer
speakers to dial telephone numbers in my address book. I decided to
add a button to do automatic call back if the number is engaged. The
instructions in the phone book which are also here -

If you have ever wanted a wood computer or a wood laptop
http://www.gostyle.com/

FM reception on my NAD pre amp is good however, not so for AM.
Any ideas re aerial or whatever
Robby

Oscilloscopesmessageboard" <Oscilloscopesmessageboard@googlegroups.com
Oscilloscope: An electronic instrument that produces instantaneous
trace(s) on the screen of a cathode-ray tube or display corresponding
to oscillations of voltage or current presented to its input(s) over

I have just bought a "Music Television"  Model MTV-540STB set top box
from Coles for the incredible price of $75.
I am in WA so I don't know if this is available nationally or just in
WA.

I have a large room with a door at each end. There is a light switch
near one door and I want one near the other door (3 way light switch)
but I can't rewire inside the walls.
I wonder if there is a wireless solution where I can add a 2nd wireless

A friend is giving a set of lectures over computer. I would like to record
them and give them to him as a surprise. I've been experimenting and my
computer is too slow to capture both video and sounds on the same machine.
So I want to record the video on one, feed the sound to ...

Looking for quality, substantial electronic kits.  Amtateur radio,
computers, etc.  If anybody remembers Heathkit, you know what I'm talking
about.  All I find these days are useless novelties that flash LEDs, make
noise or scoot around on the floor.  Aybody making an honest to ...