Oberheim,Memory Moog and naked men in africa!

[Bjorn Julin]

>BJ,
>
> > Seriously, looking at the OB Xpander i was
> > suppriced to find that they used a switched
> > mode power supply? Now haven't you all said
> > from time to time that a switched ps is no no!
>
>Hehehe, I used a switch mode in my MonoWave,
>ask Tony, Peter, Magnus and all the others who've heard it
>how it sounds... :-)

So what did they say?

>I think as long as you're not useing VCOs it should be ok..
>and as long as theres enough smoothing cap there it doesnt matter.

Well i agree into that, one just has to listen to a decent
PC audio card to hear that its mostly OK.
That is the interesting issue with the Xpander.

> > Oberheim has put a lot of efforts into get
> > smooth DAC step transitions by using RC lag
> > nets on the 14 bit DAC.

>The PPG Wave also does this.. suprisingly with 2 SPST switchs,
>a cap and TWO resistors, giving 3 variable time constants for >smoothing, 
>hence the REALLY long Attack/decay/release times which are >stepless.

Remark my posting, i was "only" looking into poly synths with
VCO's and VCF's, digital hybrides dont qualify to be compared.

But newer the less its interesting, the PPG and the P-Vector
used 12biters.

BJ
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