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http://modularsynthesis.com/nrm/lopass/
http://www.dragonflyalley.com/constructionBuchla292c.htm
Buildguide:
Resonant Lopass Gate Build Document.pdf
by usage of a Rotary Switch - we needed six wires - we have five colors - so we marked one of the white ones with a bit of heat shrink. We later removed the heat-shrink from the switch-end 'cause we realized it would be in the way - but we immediately soldered that wire to the switch pad A. Here's how the wires worked out:
S1 - red - switch pad 3
S2 - marked white - switch pad A
S3 - green - switch pad 12
S4 - blue - switch pad D
S5 - white - switch pad 7
S6 - black - switch pad C
BOM:
DJB Lopass Gate Mouser parts list.pdf (with mods from http://modularsynthesis.com/nrm/lopass/ )
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