[sdiy] Korg Lambda envelope

[Bob Weigel]

These are like the envelopes on typical string machines.  Capacitors 
resistors and diodes form a network that uses a control voltage set by 
the panel controls to charge/discharge individual note's divider 
networks as they are triggered. The Lambda uses 9 of the big chips as 
opposed to the three used in the Delta.  Delta also has poly 
attack/release on the string section.  However there is one dedicated 
envelope for the synth section making it paraphonic on that half of 
things.  Lambda has separate networks for the percussion, and two part 
ensemble as I recall.  My schematics suck.  I'm going to download the 
fdisk one pointed to on my page and see if it's any clearer.  MIssing 
traces to puzzle together in parts on my drawings I bought from someone 
years ago.  -Bob

David Moylan wrote:

> Tried this on AH after a discussion of the Korg Lambda with no response:
>
> Can someone explain the action of the AR Ensemble envelope generator 
> circuits found in lambda_es50_02.gif of the schematics found on this 
> site?  Can't quite figure out what's happening there.
>
> Dave
>
> Here's the link to the schematics:
>
> http://www.carbon111.com/lambda/lambda_schematics.zip
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>
>