Dual ADSR/VCA combo module for Eurorack

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Main components

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Part NumberDescription
LM556Dual Timer, DIP-14/SOIC-14
LM13700Dual Operational Transconductance Amplifiers with Linearizing Diodes and Buffers, DIP-16/SOIC-16
TL074
TL072Single JFET Input Operational Amplifiers, DIP-8/SOIC-8

MOL schematic

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MOL board layout

MOL PCB render

Top PCB
Bottom PCB