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Re: why aren't electronics schematics trade secrets?

From: Barry Margolin
Subject: Re: why aren't electronics schematics trade secrets?
Date: Thu, 02 Dec 2004 22:20:34 -0500
User-agent: MT-NewsWatcher/3.4 (PPC Mac OS X)

In article <Xns95B3F395E45C786336@>,
 Roger Johansson <> wrote:

> Dan Jacobson <> wrote:
> > Just curious why electronics schematics aren't closely guarded trade
> > secrets. Is it because the hard part is making the parts, not
> > stringing them together?
> At least 97% of the production use very common circuit solutions, usually
> copied directly from from the application notes from the manufacturer.

Anyone remember the days before VLSI took over (60's and 70's), when the 
manual for just about every electronic device included a wiring diagram?  
I remember seeing this in televisions, transistor radios, and even some 
early calculators.

Barry Margolin,
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***

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