Electronics Forum / Electronics / December 2003

I just wondering, is there something like 'analog integraded circuits' that
we design self?
With kind regards,
Niels

For an electronics class at my high school, we're building systems
from scratch around the Motorola 6802 microprocessor (shh), and the
eventual goal is building in an ADC and a DAC and using the system as
a signal processor.

Yes it does!
Sample-playback synths reek!
FM emulation reeks!
Analog synths reek!

I have some christmas lights that just stay on, and I was wondering if
anyone knows of a flashing circuit I could use to make them flash?

I am looking for a non contact displacement measuring device.
Basically I need to measure the distance from my sensor to a surface
over a range of approx 100 - 400 mm, hopefully with an accuracy of
better than +/- 1mm

I'm desperately chasing a couple of these. I'm told they were common in UK
TVmasthead amps a "few" years ago. A websearch followed by emails has turned
up zip, worldwide. Even sites stateing that they are in stock (and numbers
of them) return a "sorry no go " response.

I need help ........
Make: Philips TV
Model: 29PT6361/79B (manual also mentions 29PT6021/5)
Chassis: A10A/AA

I would like to make a PIC 16F877 comunicate with a serial PC port.
I read that some precision oscilator is required for this task : the
internal and RC oscilation PIC modes are not suitable.
So, could you recommend me any crystal / ressonator which is cheap an

I built the circuit in the above patent (www.uspto.gov) that CMG uses
in their Infinity flashlight.  Essentially it's an asymmetrical
astable multivibrator F-F, with one collector load being an inductor.  
I used a 100 uH instead of the 220 uH that the schem calls for.  The

...that I can successfully run this 18W 60Hz product in OZ with a $50
stepdown given that it relies on magnetic induction for power
transfer?
http://www.thinkgeek.com/gadgets/lights/5cf5

We have five "old" (1996) compaq proliant 4500 servers sitting by the
door at work, waiting to be taken to the boneyard.  Just for the
halibut, I looked up the property tag on our database, and it showed the
original cost was almost 23,000 dollars apiece.  Wow, almost a hundred

Attach PC to Stereo
I want to attach my pc to my stereo to allow me to;
 a.. stream internet radio and listen to it through my stereo
 b.. record my vinyl and cassettes into my pc to create cds

Hi, does any one know or have any idea on how to trasmit (wireless)
digital information to an other devices to receive it??
in other word: rs-232 serial communication in wireless ( One way only)
if u have suggestion, ideas, tip or anything just say it out ;)

I need information of vending machinne

Does anyone know where hobbyists can buy industrial computer parts from in
AU?  I'm after LCD touchscreens and what not, but I'm not a reseller or
manufacturer.
Paul