Electronics Forum / Electronics / October 2008

Electronics is the field of manipulating electrical currents and
voltages using passive and active components that are connected
together to create circuits. Electronic circuits range from a simple
load resistor that converts a current to a voltage, to computer

Just wanted to say hi.
and know that I will be checking here quite a bit!
thanks
Michael

Just wondering if anyone here has modded (or knows how) an old bakelite
rotary phone to work on the modern phone system?
Do we even have pulse dialing anymore - or does that vary from exchange
to exchange?

Any idea who migh have one for loan / hire
Regards
Joe

http://www.fat-man.co.uk/docs/product/itube_252_1.htm
I've always thought iPods and now iPhones are for the wakers of theb world
who value style/trendy brand name over
substance/features and performance. But I kinda like the amp setup. Shiny

Command-A-Woman:
http://www.jaycar.com.au/productView.asp?ID=GT3172
and a matching
Command-A-Man:

hi, can any bod point me in the right direction for a   HIGH efficency
schematic to operate a 240 volt cfl (s) of 12 volys ?
i`ve had a bit of look on the net , but  nothing much ..
thanks,'

Hi, Tried googling on this, but predictably everything is way too complex.
I'm looking for a simple, low speed (few hundred b/s would do it)
self-clocking protocol that I can use to dump debugging data from tiny
micros that are under test. Single line, tolerant to uncertain clock ...

im running Linux as the primary and using Ubuntu hardy 8.04 on my main
hard drive i have a second hard drive from a older machine that
stopped working but found out that the hard drive was still intact
with the OS on it which is xp have allot of stuff on it can i run it ?

Am I missing something when it comes to using a L200C.
The spec says it can deliver up to 2 amps - I can't get more that 700mA out
of one!
I have a stiff source of 32VAC and getting about 40volts DC into the device

Does anyone have a schematic, an old parts unit, or just a verbal
description of what and whee the electrolytics are in an Oregon D6
Variable voltage dual power supply?   Someone pulled the caps and left
no record of what they were.  Willing to pay for schematic or parts

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I was wondering if anyone can suggest/recommend a signal generator kit
that can be bought in Australia.
I looked around, and although I found a number of well-priced options on
US based sites, I couldn't find much from any Australian sites,

I have a fleet of 5 taxis. What I am looking for is a stand alone
magnetic stripe card reader that I can mount in each taxi. The purpose
of each machine would to be to record the account number from the
card. Then at the end of the month, I would need to take this

A true-sinewave inverter cost too much for me. So I have a Xantrex XPower
1000 inverter.
This 1000 watt inverter do have a modified sinewave output.
Is it possible to filter the output voltage to bring it closer to a sine