AW: Jitter in VCOs

[Haible Juergen]

	>.it would be ironic if the reason 'older' synths are more
	>popular is because the regulator caps are drying out and the
resultant hum
	>is modulating everything!

There's one strong point against this theory: These old synths did sound
as good when they were new. We just have to listen to 70s albums 
(which I do all the time).

OTAH, the effect on certain groups switching from analogue to digital
and Midi instruments is also very well documented with their record
releases.

- Anybody knows what the Floyd used for this increadible synth bass
sound on "Time" from DSOTM ?

	> in most synths the designs would resist AM
	>modulation to some degree (particularly op amp based ckts) but
there is
	>every scope for FM being put on the vcos.
	>I suspect that spring in the VCS3 is a magnetic field detector,
either by
	>the pickup coil or via the springs themselves. My brain hurts
when I think
	>what audio modulation of the vcf might do.

I've build a couple of VCS3 VCOs on vectorboard, together with a
rather clean power supply, and it still did sound very "special".
(No A/B with a stock VCS3, though).
I guess the key to it all is the cheap and noisy expo converter.

JH.
 


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