AVR-Chat

On Tue, 2005-10-11 at 08:23 +1000, Peter Jakacki wrote:
> The circuit notation is obvious if you have ever wired a circuit up 
> before, otherwise you may find it a bit terse. The "~~ 10K ~~" means a
> 10K resistor with the connections on either end, BASE means connection
> to the BASE of the transistor etc etc. What else would BASE mean? It
> is possible to use ASCII art to draw the circuit, but I always find
> that laborious, a bit like illuminating manuscripts.

   Well, with that information, I can now make sense of the description,
though I must say in over 35 years of doing electronics as both a
hobyist and a professional, I have never seen a circuit described in
this way.

   Also, what does 100R indicate?

> Anyway, you guys can be academic about it all and compare apples and 
> oranges all day long if you like. I'll keep on doing what an engineer 
> does best .... being practical.

   Since you didn't specify the environment of the application, their
comments were completely appropriate.   In most REAL WORLD applications,
the system you are describing would be, at best, unreliable.  Engineers,
being practical, attempt to engineer in enough head room to keep the
system woirking under adverse conditions, actually...*THAT* is what
"engineers" do.  

Tom