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Vactrol Replacement for DOD 440


 
7/16/2004 8:25 PM
Alvaro Salinas
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Vactrol Replacement for DOD 440
I've built the Guitareffects..... DOD 440 Envelope Filter.. but i just hear a quite distorted guitar signal with no ENVELOPE MODULATION.. Diodes are right, caps and circuit traces of the board too.. but i've desoldered an old vactrol VTLC5 /??? optocoupler (from a compressor stage of and old fender bassman compact) that has the same pins compared to the one in the Layout at Guitar Effects....  
 
I've replaced it with a diode and a center tapped LDR and the LED doesn't work..  
 
Any Suggestions?
 
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