[sdiy] old datasheet "schematics" vs modern "simplified schematics"

Michael E Caloroso mec.forumreader at gmail.com
Tue Jul 8 19:47:27 CEST 2014


It protects their IP.  Many competitors simply copied the designs from
the databooks so they were changed to simplified circuits.  Enough
info for circuit engineers, but not enough for copycats.

MC

On 7/8/14, Dan Snazelle <subjectivity at hotmail.com> wrote:
> ive been looking into some old chips for BJT design ideas
>
> mostly fairchild and RCA
>
> one interesting thing
> (maybe due to the simpler nature of chips then OR because of a different
> kind of marketing attitude)  it seems they used to publish the full circuit
> inside that was inside the chip.
>
>
> now i may be wrong about this
> but there is a key grammatical difference in old databooks vs. newer ones
>
> " schematic" vs " simplified schematic"
>
> one implies that you are seeing a working circuit
>
>
> the other that it is missing much
>
>
>  just wondering if anyone knows why this changed?
>
> thnx
> Sent from my iPhone
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