Saturday 16 September 2023

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.


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





time to solder the LDRs / LEDs

1 x 10K linear pot. (type B)
6 x 100K linear pot






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1 comment:

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