[AH] RE: OB-8 calibration error

[Magnus Danielson]

From: Haible Juergen <Juergen.Haible at nbgm.siemens.de>
Subject: [AH] RE: OB-8 calibration error
Date: Wed, 22 Nov 2000 13:48:56 +0100

> Hi Magnus,

Hi Juergen,

> 	>Sorry, you will have to look on the scans! ;)
> 
> Thanks for the new scans.

I thought you would enjoy them. ;)

> http://home.swipnet.se/cfmd/synths/companies/oberheim/ECO434.jpg
> 
> Now that is interesting:
> Apparently some of the most interesting features found their way into
> the OB-8 as late as ECO434 / Rev. A8 !
> 
> Modulation inversion for Frequency and Pulse Width on VCO 2 is
> a very powerful tool for creating lush sounds, and clearly on of these
> things that make me prefer the OB-8 over the OB-Xa.
> (Especially Strings sounds benefit from two PWM VCOs that
> are modulated in opposite direction.)
> 
> And things that I've always taken for granted, like various portamento
> shapes or the Lever working on VCF, only came with A8 as well.
> 
> My conclusion:
> 
> No wonder that there are people who don't share my enthusiasm for
> the OB-8 - they might have an entirely different instrument !
> (Not that I claim there can't be other reasons as well, of course.)
> 
> I'm crossposting this to AH, because I thought it might be of general
> interest,
> not just for synth-diy.

Basically, the Page 2 stuff came in late.

> And thanks to Magnus for digging up ECO427
> http://home.swipnet.se/cfmd/synths/companies/oberheim/ECO427.jpg
> which confirms the long suspected envelope times miscalibration
> of many OB-8's.

Yeah, well, it was in my stack of ECO's and I knew it would interest a
certain fellow around here...

Cheers,
Magnus