Doepfer

If you have multiple Sample and Holds, you should try this:

Get a sound going. A no attack, short decay type of sound you 
like and one that you can make duplicates of, corrospondong to 
the number of S+Hs your system has. (one voice for each S+H).

Tune the intiial frequency of each osc of each voice in unison.  
Set the VC frequency limits of each so they track to one another 
(doesn't have to be exact, close will work just fine).  If your VCOs 
have 1V/oct inputs, you're already there).

Control each of these sounds with a separate S+H, making sure 
that the clock that drives each S+H is from a different source but 
that the voltage that's being SAMPLED by each S+H is from the 
same source. ,Also setr  the initial speed of each and VC limit of 
each  to a relatively close speed and limit  to each other, but not 
exactly.  Try larger variances once you get the whole patch going.

Listen to these sounds together.  It's a async analog shift 
register effect, because all three (or four, or however many) 
sample and holds are sampling to very much the same bit of 
info, but slightly out of sync with one another.  

I have three S+H's in my box.  I have tried this with as little as two 
though and the effect is still strong.

Fun little thing to do.  You get all of the delay/echo effect of an 
analog shift register, but it's not as predictable.

Always tinkering,

Peter