Hi!
I have an OB SEM, the original one.
I have been trying to get it to work with my Arturia keystep, for it too has CV.
I can't seem to hook it up correctly, thus I am querying this collective.
Any help would be greatly appreciated.
Thx.
B9
OB SEM original with CV - help in hooking up
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commodorejohn
- Synth Explorer

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Re: OB SEM original with CV - help in hooking up
What specific issues are you encountering? I know I had trouble getting my SEM Pro to work with a Keystep - the Keystep doesn't output negative pitch CVs so it can't take the SEM all the way down to the bottom of its range, and the SEM doesn't like something about the Keystep's gate signal so the EGs were kind of glitchy. I ended up just snagging a Kenton Pro Solo Mk. II off eBay and that got along perfectly fine with it.
Computers: Amiga 1200, DEC VAXStation 4000/60, DEC MicroPDP-11/73
Re: OB SEM original with CV - help in hooking up
Thanks for the response on the OB SEM!
The labels on my SEM are fading.
So, any chance you could explain the connections to me from the Kenton, or snag a JPEG of that setup??
Thx.
B(
The labels on my SEM are fading.
So, any chance you could explain the connections to me from the Kenton, or snag a JPEG of that setup??
Thx.
B(
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commodorejohn
- Synth Explorer

- Posts: 1601
- Joined: Mon Aug 12, 2013 2:39 am
- Real name: John
- Gear: Roland JX-10/SH-09/MT-32/D-50, Yamaha DX7-II/V50/TX7/TG33/FB-01, Korg MS-20 Mini/ARP Odyssey/DW-8000/X5DR, Ensoniq SQ-80, Oberheim SEM
- Location: Sacramento, CA
- Contact:
Re: OB SEM original with CV - help in hooking up
I'd love to, but mine is a reissue SEM Pro, so it's got a full patch panel on the side instead of the simpler layout on the vintage article.
Computers: Amiga 1200, DEC VAXStation 4000/60, DEC MicroPDP-11/73
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Explorer
- Active Member

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Re: OB SEM original with CV - help in hooking up
How many patchpoints does your SEM have?
Some added only 3,cv/gate/filter control.
Others have more,depending on what they wanted to control.
Can you post a pic?
Some added only 3,cv/gate/filter control.
Others have more,depending on what they wanted to control.
Can you post a pic?
