VC ADSR - NLC build notes - part 2

Some build notes for the Nonlinear circuits VC ADSR.

The attack, decay & release stages are voltage controllable.

(not sustain).

This is part 2 on my build.

Part 1 is here:

• VC ADSR - NLC build notes - part 1

Links:

+ BOM

+ WIKI

I'm up to building a light proof box to house some LDRs and LEDs.

These make a diy vactrol circuit.

This is a super  simple module that uses a 555 timer, op-amps and some diodes to make 

a ADSR envelope generator.

It's based on the classic Jacky/Kirschman 555 ADSR circuit from 1980.

Andrew has replaced the Attack-Decay-Release pots with DIY vactrols.

The 555 controls the sequencing while the diodes switch the currents.

This is the box so far:

the edge connectors

+ LEDs 

+ Vactrols - Optocoupliers

time to solder the LDRs / LEDs

1 x 10K linear pot. (type B)

6 x 100K linear pot

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