Electronics Forum / Electronics / October 2004

HI,  i am in the process of building up a   power supply using lm 7805 regs
etc.....
but the  voltage  before its had a capacitor across it , staright of the
rectifier is about 37 volts dc, which is too much for the reg, plus with the

I was wondering if anyone knows a cheap and easy way to connect my
headphones (with a single stereo plug) to the rca outputs (red/white)
on my dvd player, and preferably still obtain stereo sound?
Unfortunately, my TV doesn't have a headphone socket.

Classified US Government Technology
The United States government now has surveillance technology than can
electronically see and hear through walls. Agents of the US government can move
into a neighboring house and conduct complete surveillance of you in your home

Classified US Government Technology
The United States government now has surveillance technology than can
electronically see and hear through walls. Agents of the US government can move
into a neighboring house and conduct complete surveillance of you in your home

Hi fellows, one somehow unusual question.
I was using some AAA 1.5V batteries for usual stuff (remote controls
etc) and recently decided to move to rechargeable batteries.
So I purchased 4x AAA Sanyo HR-4U batteries which turned to be of 1.2V.

G'day all, I have a small laptop PSU that I'm using for a portable HD
based MP3 player.
It can take an input voltage range of 10-18.7V DC and provide:
+5V  @ 4A

All,
Looking for ether a domestic exterior floodlight that has a night\day switch
in it, or simply the day\night switch on its own.  I would prefer something
capable of switching about 500w at 240V (max).

I have a plan to add an electric motor to my tadpole recumbant trike -
anyone know of a site of someone who has already done it?
Thanks, R

test xcbvxgd  xxv vxvv gxvxcv  xgxgvxv.

I currently have a Liebert PSA700-230 UPS System, and for some reason
I do need to change its output frequency.
1. Are there any possibilities to change the cycle frequency of my UPS
from 60Hz to 50Hz? I'm in Australia and the mains' frequency is 50Hz.

What is the difference between a brush type "ordinary" DC motor and DC
"servo" motor?
Does adding a quadrature encoder to the ordinary DC motor convert it to a DC
sevo motor?

HOW TO TURN $6 INTO $6,000!!!!!! READING THIS COULD CHANGE YOUR LIFE!
I found this on a bulletin board and decided to try it. A little while
back, I was browsing through newsgroups, just like you are now, and came
across an article similar to this that said you could make ...

I have some VS1001k and STA013 chips left over from a recent project.
AUD28 ea in small quantities (+$5 airmail).Paypal OK.
Substitute .nz for .middleearth to email.
cheers

I've got a Panasonic 5-disc stereo (SA-AK48) which slipped a couple of CDs
the other day. After opening it, removing the CDs and placing the little
plastic rings which separate them inside the changer back together it now
doesn't really want to work.

Could anyone help with actual vision frequencies or at least channel nos
for UHF in the Manly/Dee Why area.
Remove second d to reply
Thanks