[sdiy] equations up

[René Schmitz]

Hi Ian,

> I've put up a page of tempco theory here
> 
> http://home.earthlink.net/~ijfritz/sy_cir7.htm

Good work!

Cheers,
  René

-- 
uzs159 at uni-bonn.de
http://www.uni-bonn.de/~uzs159