Circuit designs?

[Boris Panhoelzl]

Circuit designs?

how can I get circ.des. for a simple, analogue synth?
I only have a book from 1979 describing how to build a synth with 
VCO, LFO, ADSR etc, etc  but I'd like to have something newer.
Is there a possibility to get designs directly in the web?
I need a design describing every single part of the circuit
(not necessarily the hole synth).

thank you,
                         bp, vienna, austria