It's almost the sound of a time travelling device.
Using filtered feedback with a noise input to produce a tone. Some bass notes turn a little noisy if the freq is left at one value for a few seconds.
An attempt to replicate the snare from "It's More Fun To Compute" by, err... somebody please remind me.
As usual, it's close but no cigar.
Having a smashing time with SuperCollider. I revised this SynthDef - the newest / best one is at the top and my previous version is below.
p.s. I sto