Electronics Forum / Electronics / April 2004

I am doing a project with MCU,8051 and UART,SCC2691(Philips)
but i can't initialize it properly,
therefore i am looking for the driver for it
i just want the MCU to receive serial data from the SCC2691

This is my software office.
http://www.wayit.com.au/images/dsc01245.jpg
Wanna see my dirty desk(s)?

Anyone ordered sample IC's from Analog Devices ?
I'm getting the run-around regarding getting them in Oz......
Regards
Andrew

Ok,
I've read some discussion here about pulsing LEDs to achieve higher output without burning
the stupid things out. (Instead of CW).
I'm just working on a circuit for general purpose low voltage illumination, but want to

Hi
Where can i buy Half Pitch Centronics 26-pin Male connectors in Canada/US.
Thanks to all of you
regards

I'm hoping one or two of you TV guys may be able to point me in the right
direction with my failed TV.
It's a Teac CTW3450S (I will stick to big name Jap brands in future!).
Initially there was some horizontal pulling on the right hand side of the

I'm chasing data sheets on the Infineon SFH409 IR LED and the SFH309FA-4 IR
phototransistor.  Most ofhe usual sources show nothing, as does Google. The
nearest I can find is abbreviated data on the Farnell (or was it RS?) website.
Anyone able to point me in the right direction?

Last Dec. over the holidays I was thinking that all these LED V boost
circuits that I see are three terminal black boxes.  It would sure be a
lot easier to put one in a flashlight if it was a two terminal box.
That way, no common or ground would have to be used, and the LED would ...

Yes that's right, HP inkjet printer cartridges.  Need to know what the
circuits are on the cartridge from the contacts to the print head.  Tried to
meter this out and it's not making much sense of the readings using an ohm
meter.

I wonder if anyone can give some advice regarding a little problem.
I have a couple of CRT monitors that exhibit similar problems. One
flashes yellow (blue gun fault I guess) and the other flashes magenta
(green gun fault?). It seems to be an electromechanical fault because

I have a very early (circa 1993) Rode large diaphragm condensor mic.  I am
trying to identify a couple transistors, which I believe to be FETs.
Problem is, I cannot find any data on them at all.
The two transistors in question have the numbers:

Does converting a DC power sorce to an AC power supply change voltage
levels? If so, how?
I'm building a prototype high temp desert tent. I want to use a solar
panel that happens to produce DC current to a cooling system that uses

I recently bought a Dick Smith oscilloscope, please see attached link, or
search for Item number: 3807992995.
This scope does not have a manual and I am unable to find any reference to
it on the internet.  It's obviously an older scope sold by Dick Smith and it

I'm trying to source the new Zetex ZMX40M/ZMZ20M, AMR chips
I've emailed Polykom (as they are a Hagemeyer company and the Aus
Zetex sales office is a Hagemeyer subsidiary).
I've had no reply from Polykom (I only want 1offs) . Anyone ever had a

Yeah, ok I'm bored......
I'm thinking I want to try building a car audio amplifier, a simple (hehe) multistage BJT
power amp, any suggestions on a particular transistor for the application? (hoping one
that has good tech support docs).