DOD 440

[didier]

Hello,

a few weeks ago i started building the DOD 440 envellope filter.
http://www.generalguitargadgets.com/diagrams/ef440_sc.gif

now i have been looking for the VTL5C4 opto coupler in many of the locas electronics shops but they don't seem to have them or are even unable to order them...

is there an equivalent optocoupler (Europe) that i can use? or solve this differently?

[smank]

You can buy it on www.banzaieffects.com: it's in Germany and Olaf (the boss) have a great list of components.