[sdiy] Audio circuits and basic electronics knowledge recommendation.

[Roman Sowa]

He had a point, and he also was oldschool (which is very appealing to me 
as I'm oldschool too).
The thing is you obviously don't include components in Spice simulation 
that you have no idea they exist, like twisted 15cm wire is just a wire 
in Spice file, while in reality it's complex RLC network. Same thing 
with mutual inductances between components that were not designet to be 
coupled, interference from adjacent traces and outside world, noisy 
power supply and so on. Most of this comes out in RF circuits, but I've 
seen so many times when synth circuit failed because of the things 
nobody predicted in Spice.
By the time you include everything possible in Spice, you might as well 
solder it and check in reality.

Roman

W dniu 2016-03-02 o 10:59, Steve pisze:
>
> Although Bob Pease didn't like it that so many people use spice. He
> wrote something like "people use spice to build circuits which don't
> work in reality".
> Was he just oldschool, or did he have a point?
>
> I'm semi beginner in EE matters, but my gut feeling says to that, that
> spice would then be good for trying out ideas to get into the ballpark,
> but it may not replace actually building things, measuring and
> correcting according to how stuff actually performs in reality, using
> actual components.
>
> "Tom Wiltshire" <tom at electricdruid.net>
> +1 Agree.
>
> I use LTSpice, but the principle is the same. There's a lot to be
> learned from sims before you get to real circuits.
>
> And the reverse is true too - I've learned a lot by running sims of
> existing circuits and finding out what the frequency response was or
> what was used as the upper limit of audio or whatever. Careful analysis
> of what better people have done previously is a good way to learn where
> to go next.
>
> Tom
>
>
> On 1 Mar 2016, at 23:05, Chris Juried <cjuried at yahoo.com> wrote:
>
>  > Agreed. Or my favorite MultiSim.
>  >
>  > Best,
>  >
>  > Chris
>  > http://www.JuriedEngineering.com
>  >
>  >
>  > On Tue, Mar 1, 2016 at 5:57 PM, Sarah Thompson
>  > <plodger at gmail.com> wrote:
>  > +1 for The Art of Electronics.
>  >
>  > Also, get yourself a copy of LTSpice, learn how to use it, and bash
> away on it to build and check out circuits. You can do more stuff way
> faster on there than you ever could with physical circuits, which
> translates to learning a lot very quickly. It also gives you a leg up on
> having your designs work first time (or more often so) when they are
> translated into real hardware.
>  >
>  > Sarah
>  >
>  > On Tue, Mar 1, 2016 at 11:23 AM, Karsten Schmidt <info at toxi.co.uk> wrote:
>  > There's a great collection of beginner links on Muffwiggler:
>  > https://www.muffwiggler.com/forum/viewtopic.php?t=2795
>  >
>  > On 1 March 2016 at 09:02, Oakley Sound <oakleylist at btinternet.com> wrote:
>  > > This set of articles written by Rod Elliott are a really good read:
>  > >
>  > > http://sound.westhost.com/articles.htm
>  > >
>  > > The beginners' stuff is about two thirds of the way down the page.
>  > >
>  > > Tony
>  > >
>  > > http://www.oakleysound.com/
>  > >
>  > > _______________________________________________
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>  >
>  >
>  > --
>  > Karsten Schmidt
>  > http://postspectacular.com | http://thi.ng | http://toxiclibs.org
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