[sdiy] RE: how it all started

[Michael Zacherl]

oh dear ... that all looks too familiar, but I barely can recall any 
details. Must have been the early seventies, IIRC ... awesome. Juergen 
is right with this upstream thing ... I guess that's why I didn't get my 
head around it back then.
I've to deal with my father's legacy these days, maybe I find some 
evidence to refresh my memory ...

   Michael.

Theo wrote:
 > Ditto, well almost
 > I got the blue one on top of the page, there where even 3 transistors 
in it!
 > And lets not forget the 8 tone "organ" schematic!!!
 > http://sharon.pi8zaa.ampr.org/users/pa0ib/bouwdozn/ee-re/index.html