[sdiy] Discrete OTA

[Olivier Gillet]

> I think a good model here is Sparkfun. Sure you can copy their "open source" designs. But they have everything needed set up to produce their goods in quantity.

Another thing to keep in mind is that there is a novelty and "fashion"
effect. Sparkfun can tolerate having their designs copied because by
the time the rip-off production chain has been set-up, they have moved
on to promoting another gadget, their dev-boards have been upgraded to
a different chip, or there is a new and easier to use sensor chip to
play with.

Which also happens in the fast-paced world of synths and euro modular.
Whatever a company publishes in terms of code/schematics is a t-12
months or t-18 months snapshot of what its engineering department is
doing.