[sdiy] oberheim ob-8

[Magnus Danielson]

From: "Jeremiah Pellin" <jpellin at iname.com>
Subject: [sdiy] oberheim ob-8
Date: Fri, 07 Feb 2003 13:06:29 -0500

> hello do it yourselvians!!!!!!!!
> 
> funny thing happened to me, i built a fatman, built a rack of blacet modules, and now to calibrate an OB-8.
> 
> in Missouri there is not a wealth of people to service vintage gear.  My colleague has an awesome arsenal of vintage synths.  he's having trouble with his ob-8 and requested me to calibrate it.
> 
> I'm hoping some of you could shed light on any unusual particularities or do's and don'ts.
> 
> i bet some of you are cringing over the idea of a FN'G (fu#$ing new guy) triing to calibrate an OB-8.
> 
> let me know please.  if you all tell me i'm crazy at least then i know your professional opinion.

You're crazy... so welcome! ;O)

OK. First of all fetch the service-manual that I have on the web at:

http://home.swipnet.se/cfmd/synths/companies/oberheim/

Beware of the ECO on envelope trimming!

There is a hint for filters which isn't in the manual... trim the filter by
adjusting the offset on the top key and then adjust scale by selecting a
LOWER tone, 2-3 octaves down.

If you follow the service manual with the extra hints, trimming the OB-8 is
mostly a walk in the park, with the VCF trimming as the most straining part.

Good luck!

Cheers,
Magnus - another OB-8 owner