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PeteMOBie · 5th June 2009

Question for Clusterchord.
Your friend has opened his OB-SX many times, as have I. It wouldn't be to tweak the manual tuning trim pots on the oscillators by any chance would it? Or am I the only one needing to retune every now and then?

Someone recommended replacing the finger trim pots for the Oscillator tuning with higher quality pots, as the originals were cheapo units. Has anyone done this? If so did it improve tuning stability?

The Auto tune on mine has gone as it is now set to some wierd Arabian sounding scale. Has anyone else had a similar problem with Auto Tunes?

I've had to replace the Voice DIP switch twice in 6 years, now, plus the usual cleaning.

Otherwise for a machine that is over 27 years old, I still get a lot of pleasure from playing mine, as it is very usable.

I understand that Kenton no longer provide MIDI retro-fits for Oberheims. I did wonder if anyone had a MIDI converter that took advantage of the Computer socket on the rear panel, much in the same way that Kenton made kits for the Roland Jupiter 8 and Juno 60, as these Rolands had a connector for an interface bus that allowed the Juptier 8 to talk to an MC4/8 (can't remember which, might have been both) or a JSQ sequencer.

I also see that Philip Rees MIDI2CV units are no longer available, so I guess that leaves Kenton and the CV In and Gate In jacks for Voice 1 as the only definite option.

5th June 2009	#22
PeteMOBie Gear interested Joined: Jun 2009 Location: Tasmania Posts: 23	Question for Clusterchord. Your friend has opened his OB-SX many times, as have I. It wouldn't be to tweak the manual tuning trim pots on the oscillators by any chance would it? Or am I the only one needing to retune every now and then? Someone recommended replacing the finger trim pots for the Oscillator tuning with higher quality pots, as the originals were cheapo units. Has anyone done this? If so did it improve tuning stability? The Auto tune on mine has gone as it is now set to some wierd Arabian sounding scale. Has anyone else had a similar problem with Auto Tunes? I've had to replace the Voice DIP switch twice in 6 years, now, plus the usual cleaning. Otherwise for a machine that is over 27 years old, I still get a lot of pleasure from playing mine, as it is very usable. I understand that Kenton no longer provide MIDI retro-fits for Oberheims. I did wonder if anyone had a MIDI converter that took advantage of the Computer socket on the rear panel, much in the same way that Kenton made kits for the Roland Jupiter 8 and Juno 60, as these Rolands had a connector for an interface bus that allowed the Juptier 8 to talk to an MC4/8 (can't remember which, might have been both) or a JSQ sequencer. I also see that Philip Rees MIDI2CV units are no longer available, so I guess that leaves Kenton and the CV In and Gate In jacks for Voice 1 as the only definite option.