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Oberheim 2-Voice

Posted: Wed Jul 23, 2008 12:27 am
by gschank
I have an Oberheim 2-Voice, which I have owned since the mid-70's. It is in very good shape, physically and musically. Does anyone out there know what this synth is worth? Thanks.

Posted: Wed Jul 23, 2008 1:02 am
by Z
I don't see these too often on eBay, but just judging from what I've seen, I'd say it's worth $2K - $2500 depending on condition. Just the SEM modules theselves (without chassis & PSU) are fetching $800 - $1K each.

I picked up a TVS-1 sans sequencer earlier this year for $1K thanks to a tip from a fellow member of this forum. It did need a little work, and I put another $300 into it with the help of my local tech.

Posted: Wed Jul 23, 2008 1:13 am
by gschank
Thank you so much for the reply. Mine is identical to yours, but with the sequencer module. Where and who is your tech?

Posted: Wed Jul 23, 2008 2:58 am
by Z
I use Audio Electronics here in Dallas.

My TVS-1 is the only one I've ever seen without the sequencer.

Posted: Wed Jul 23, 2008 3:50 am
by gschank
Since you seem to have good knowledge of these units, mine is Serial #0031. Would you know how many of the TVS-1's were made, and when this one was manufactured? The manual has a date of 8/24/76. If you know of sources for this kind of info, please pass it on. (I also have a Model D Minimoog, but I know much more about that unit. I bought it directly from Moog in the early 70's) Thanks.

Posted: Wed Jul 23, 2008 4:22 am
by Z
Sorry, I do not know such information. I think there are a couple of members here that do know production dates and such (I've seen numbers and dates for other instruments posted in other threads), but I don't remember who they are.

I'd like to see your synths. You can post a photo of your Obie here or all of them in the Pictures thread.

Posted: Wed Jul 23, 2008 8:55 pm
by gschank
As soon as I figure out how to post pictures, I will do so. (I can program a synth, but I can't figure out how to post a picture!)

I have the TVS-1, a Minimoog, a Yamaha SO-3, and an Arturia Moog Modular. I use the Mini, the Yamaha and the Arturia Modular for gigs, on a 3-stack set-up. The Mini on the bottom, the Yamaha in the middle, and the keyboard controller on top, with a touchscreen monitor on the left for the Moog Modular....great fun.

Posted: Wed Jul 23, 2008 10:08 pm
by Z
Many people use Flickr for photo hosting, but I like to use Photobucket. It's free and it also generates the necessary code to cut and paste your image into eBay listings and forums.


Posted: Wed Jul 23, 2008 10:53 pm
by Overgear
That setup does sound like great fun. I guess the TVS would be a bit cumbersome live :lol: ?

Don't forget to check the VSE page for the TVS :D . They list production as 75-79.

Z has you covered with price and such. A couple of little things that may or may not be helpful...

Do you have the lid/cover? That would be a plus.

The keyboard electronics and controls(black area-left of keys) may look different than what you see on Zs. I just mention this because of your early serial number. I believe the early version was more analog while the later version is listed as digital. Mine(and likely Zs) has more chips or ICs on the pcbs. I don't really know the full operational differences, though :dontknow: .

Sometimes, the production date is stamped on the SEM pcb. When looking at the back of the SEM, it's usually near the bottom center of the (closest)pcb. I haven't looked for one on the sequencer.

Good luck whatever you decide to do.

Posted: Thu Jul 24, 2008 10:08 pm
by minime123
we have a 2 voice without a sequencer as well, so yours isnt the only one. there must be quite a few out there.

Posted: Thu Jul 24, 2008 10:11 pm
by gschank
Here's a photo of the Obie. I am using Photobucket for the first time.

Yes, it does have the cover. The left-hand controller is a little different than yours, and also, there is the orange control box. Additionally, it has some modification switches which allow combinations of VCO's 1 & 2.


Posted: Thu Jul 24, 2008 11:46 pm
by guitarsandsynths
What a beauty!
Really nice.

Posted: Fri Jul 25, 2008 2:36 pm
by Micke
You gotta love 'em old Obies :)

I'm not sure how many 2-voices were made but the highest s/n I've seen on one is #547. I don't think they built many more units than that but I may be wrong.

Given that the first 2-voice shipped in Aug 1975 along with the fact that your unit has such a low s/n, I'm suspecting it was manufactured in the fall of '75.

I've only seen a handful of 2-voices like yours, incl. the one pictured in the first ed. of the service manual.

SoCal Synth Tech

Posted: Sat Jul 26, 2008 12:49 am
by gschank
Thanks for the info...
I am new to this site, but I am sure glad to have found it. It seems like a good bunch of people who know their stuff.

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Posted: Sat Jul 26, 2008 1:00 am
by Z
I love the finish on the Mini. Very nice, thanks for sharing!