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Why do you say that? High speed PCBs aren't that hard to make if you follow the rules of high speed boards. There is a really good book out there about it. Can't remember the name of it. I have it in

Hi Ted, PIC stands for Peripheral (okay, I'm bad in English spelling) Interface Controller. Its a microcontroller manufactured by Microchip. PIC17 and PIC18 is two different microcontroller families.

sjohns, Devices in optoisolators are not good for audio as far as I know. But they do make electronic analog switches. Can't give you a part # though. Jim

Thanks for the reality check! Now, back to trying to understand electronic concepts.... Ted

I'm a beginner in electronics and I would like to know if there are any optoisolators out there that would work with audio. I want to record my phone conversations (4 seperate lines) but without

Electronics_101@... writes: <visions of strings of tantalum caps going off like fireworks>see what happens when you put a 120V AC into a 15volt tantalum cap, it acts just like firecracker.

Fertilizer, Diesel, and a Ryder truck(It has to be Ryder, other kinds won't work.(: 0 ) Of course I didn't just give anybody enough info to actually DO anything... This is a topic that's somewhat in

fully agreed.

Lightning currents seldom exceed several thousand amperes. The 'voltage' of a lightning stroke is a bit problematical to figure out, so we can only look at effects. A power line that is struck by

epsulon, I assume the other signals are audio, at least in part. First let me say that video and audio can't really be combined. A TV station produces two separate signals, Video on AM, Audio on FM.

Seeing how you could do calculations and your detailed explanation, I regretted that I did not have a formal electrical-electronic education. Sigh!

Hi Jon, That sounds like a real challenging project. Well, without knowing what other signals you want to mix with the video signal, I would say that first of all you need to code the signals so they

To understand how bomb works IS an electronic question. We have things like the atomic , nuclear and neutron bomb which comes from the electronic word atom neutrons and nucleus. I ask because I am

Fine - you're involved in bi-directional transfer - of what data? If you actually posted the requirements of the board then perhaps we could help. Without knowing what the actual I/O data requirements

First of all keep in mind I'm a beginner. I would appreciate the groups help in directing me for my project. This is something I have always wanted to learn how to do. I think I want to make a carreer

It is doable. There are many companies out there that build single board embedded x86 computers. It is quite expensive to build a board to handle the high clock rate cpus though. Doug Hale