Steiner-Parker VCF DEMO (take 3). 

You can find the complete build instructions here:
www.eddybergma...
This is take 3 of a demonstration of the Steiner-Parker Voltage Controlled Filter by YuSynth who is also responsable for this same filter in the Arturia Minibrute.
I have connected an AD signal to the CV-1 input of the filter with Attack set fully closed and Release slightly open.
Now it sounds like a synthesizer should sound, me thinks =)