Oberheim TVS-1

” Looking to own a piece of music history? Need to reclaim some vintage sound? Check out this OBERHEIM TVS-1 VINTAGE 1976 2-VOICE POLYPHONIC ANALOG #0045 37-KEY SYNTHESIZER!!!

This is a used OBERHEIM TVS-1 VINTAGE 1976 2-VOICE POLYPHONIC ANALOG #0045 37-KEY SYNTHESIZER!!! Used, but in good shape for its age!!! Does have some normal cosmetic wear on it (pictured) including some scuffs, scratches and rips in the outer vinyl here and there but nothing too major!!! The synth has been tested to the best of our abilities and still seems to be working perfectly despite some light crackling when actively adjusting knobs and switches. Not at all out of the ordinary for any electronic instument this age but sound seems to clear up fine once settings are dialed in!” Click here to visit listing on eBay

Oberheim TVS-1

“This unit was fully cleaned inside and out, fully serviced, future-proofed and reassembled over many hours to make it way better than others of its kind – you will not find a better one. eBay only allows us to post a limited number of photos but we have a lot more on our website, just use the search feature for 2 voice to find them.

One of the latches is broken. We didn’t replace it because most people only use these in the studio these days. The lid also stays on reasonably well with one working latch. If you want to buy this unit and would like one or both latches replaced, please email us for a quote.” Click here to visit listing on eBay

Oberheim TVS-1A

“Vintage Oberheim TVS-1A Two-Voice Analog Synthesizer in 100% Working Condition. Very well cared for with all original knobs with caps, all LEDs working, no sticky or dead keys, no dirty pots, no hum or crackling. There is one issue with the high “B” key being a bit higher than the row (please see pic). It does not affect function or playability. This TVS-1A will be meticulously packed with only new bubble-wrap in the first new box. Then, more new bubble-wrap inside the second new box. A 37″x30″x18″ double-walled box weighing in at 51 lbs. 4 oz. Includes two power cables, copy of the manual and schematics. Capable of deep analog saturation without losing clarity. The incredible sound one expects from vintage Oberheim SEM modules. In 1975, Oberheim created their first compact, programmable and polyphonic synthesizer by coupling two SEM modules to a 37-note keyboard and a simple analog sequencer. This was what became the Two Voice. Oberheim achieved a polyphonic sound not yet seen at the time by hard-wiring the two monophonic SEMs into the compact keyboard design. In 1976 Oberheim came out with another module, the Polyphonic Synthesizer Programmer. This could memorize the control voltages of many parameters for up to eight SEM modules. When these were added to the Two Voice in the form of the Mini-Sequencer, Oberheim finally had one of the earliest programmable and polyphonic instruments. Each voice has its own filter. The filter is unique and like no other, and apparently cannot be reproduced even by its own creator. The 8-step analog sequencer controls each voice/module independently allowing two independent sequences to be run simultaneously if desired. ” Click here to visit listing on eBay

Oberheim TVS-1

“Extensive future proofing performed in May 2018 (see specifics below).
This machine is now ready for another 40+ years of fantastic music making.

The Mini sequencer has so many cool functions that makes the TVS so much more than the sum of it’s parts.” Click here to visit listing on eBay

Oberheim TVS-1

“This is the original vintage 1975 synth, with an extremely low serial number, not the reissue. It’s unlikely you’ll find another currently on offer in the USA, and very unlikely you’ll ever find one in as good condition.

100% fully functioning. Recently serviced and calibrated in late March 2018 by Nick Montoya of Moog Music. This is one of the finest examples you’ll find.

The only cosmetic imperfection is a small, light scratch above the volume knob, and on the outside of the case, there’s are a couple of small tears. It looks almost new.” Click here to visit listing on eBay

Oberheim TVS-1

tvs-1 “INVENTORY #26848



FUNCTION – Two Voice Polyphonic Analog Synthesizer Keyboard

DESCRIPTION – This listing is for a 1975 OBERHEIM TVS-1 Two Voice Polyphonic Analog Synthesizer Keyboard.

Low serial number! #0053
All original signal path, no modifications
Includes Original Manual and power cord
Includes Original Oberheim product brochure
Includes Original Oberheim logo sticker!


ACCESSORIES – Includes the original owners manual, product brochure, sticker and power cable.

PHYSICAL CONDITION – Excellent. This is an exceptionally clean unit, for those who like their vintage synths as close to “Like New” as possible, this Obie may be it. There are only few very light abrasions that require close inspection on the work surface. Otherwise it is near perfect. The outer case tolex is lightly discolored in places, has a few small scuffs. The metal corners and handles have some light oxidation scratches and dings from being moved around. Overall the unit is in very solid shape and looks amazing. Rare find!

WORKING CONDITION – Excellent. Fully tested and all knobs and switches are working perfectly. All electronics are working exactly as they should. The power supply has been re-capped with high quality japanese capacitors. This results and a quieter and more stable power supply. All the keys have new bushings and so the keyboard action is like new on this. Carefully maintained by a consummate synth collector and sound effects professional here in Hollywood. ”
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Oberheim TVS-1

tvs “1978, oberheim two voice synth with rare sequencer module.
cosmetically in excellent condition, surprising for it’s age.
functionally absolutely gorgeous, totally working in all aspects.
recently had a session in studio with a well known electronic musician/composer from LA,
and we had both this synth and the new two voice pro side by side.
we had a chance to carefully A/B them.
wow, the old SEM modules in this vintage two voice were profoundly richer.
so i can personally vouch for that reality, having used my own ears.
very, very musical synth.” Click here to visit listing on eBay

Oberheim TVS-1

tvs-1 “Well I really hate to do it but my TVS is for sale. It works great and has been well kept over the years. The person I bought it from got it from a tech at Moog so nothing was left unattended service wise. There is one issue I noticed recently with the sequencer selector set to 4 steps, it does 8. Probably just a cleaning of the switch will resolve it. The rest of the synth works great and is this is truly one of those that you will never want to get rid of. Absolutely no returns on this vintage item, once it gets to you safely it it’s yours to keep so make sure you really want a TVS before you buy this. Make an offer.” Click here to visit listing on eBay

Oberheim TVS-1

tvs-1 “A classic with Big Fat analog sounds. If you’ve been thinking about buying one of these instruments this is GREAT opportunity to purchase a very valuable piece at a reduced price.

Things to know:
The unit is FULLY functional but there are a few MINOR issues. Electronically all modules work as intended. The keyboard is in great shape but the upper octave Bf key is slightly sticky and has a different feel. For some reason the second octave C key is about a 1/16″ above the others. All keys release quickly but I think the key release is a bit loud….may be normal for this keyboard but I’ve read that the rubber dampening bushing harden with age. If so new ones are available. The sequencer clock slide switch center detent is not as positive as new but DOES work. As with any vintage piece the pots are smooth but could use a shot of cleaner/lube to restore pristine feel. Overall the Tolex is great with a few SMALL tears and scuffs.

Due to age this item is sold in as is condition and returns are not accepted BUT the unit is accurately described. If you have any question please feel to contact me before bidding.

Includes TVS-1, power cord, abridged user guide and all schematics (see photos).” Click here to visit listing on eBay

Oberheim TVS-1 Two Voice Synth

tvs-1” This is an Oberheim Two Voice synthesizer in very rare all original condition and style as it’s an early model serial#28. It powers up and makes sound and the sequencer has life but no further testing was done. It remains powered off until it can be properly serviced and safely operated without potentially harming the rare components of this synth. This needs to be serviced/restored if you actually want to use it. I will pack the synth very carefully for a safe journey. ” Click here to visit listing on eBay

Oberheim TVS-1

2vc “For those who just don’t like the sound of “today’s” analog- this is a beauty. It’s an original Oberheim Two Voice, restored by the late great Kevin Lightner in 2011- 12. I have had this beauty since then and only one problem has surfaced. The key “b” above middle c does not trigger. It appears to work in the sequencer so I assume the problem is key. It worked fine initially but stopped working after about 6 months. I have always just worked around it and I have adjusted the price .Kevin sent me quite a few notes on the piece and they will be included in the sale. One thing is that this one contains a “clock out” , which could be useful today for modular fun but you have to turn the machine off while plugging in the patch cord or the clock out will short. It’s the 70s version of “known issue”. 🙂
Anyway this contains 2 vintage SEMs , a functioning sequencer and keyboard and all the other features of yesteryear. I can’t imagine that anyone looking for the vintage oberheim sound will be disappointed.
According to Kevin’s notes, all parts that had failed were replaced and as he said “most of the internal parts have been replaced. ” Those who know of his work know what that means!
I have included up close photos of the mod inputs and will include my correspondence with Kevin relevant to the mods. I have tested them all except clock out and it works. It synchs with midi with my Cirklon cv outs and has been an overall treat to play. It particularly seems to like analog flangers !
Physically, it is in great shape for its age but there may be a few minor flaws. I have tried to represent this fairly but my eyes are not what they used to be. Look closely YMMV. Tolex looks to be in fine shape, all things considered.
This will be very carefully packed and professionally shipped. These things are heavy and I will ship it double boxed and insured so I am charging a fixed rate that is undoubterly less that UPS will charge me. ” Click here to visit listing on eBay

Oberheim TVS-1 Project Machine

tvs-1“Oberheim 2 Voice TVS-1 Analog Synthesizer with Sequencer 75% working
One of the very last rare synthesizers from the South Florida Estate sale

AC Power cord has been found and unit has been tested

Power cord is included

The Synth is in very good physical condition as can be seen in the first picture

Keyboard feels good but a few bushings might need to be replaced

The left Voice module is receiving signals but does not output any sound

The right Voice module is functioning properly, filter is functioning properly

All the keys work, all the switches and knobs work (except for left voice module)

The sequencer works, all 8 steps

Even with one voice this thing sounds great

Functions that require the second voice module cant be tested” Click here to visit listing on eBay

Oberheim TVS-1

“For your consideration is the Oberheim Two-Voice.
The Two Voice has been gently used in my smoke free studio, and shows very little cosmetic wear(see pics).
Honestly, this synth is in nicer cosmetic condition than possibly any synth that I have owned from the 70’s.
The synth is fully tested and completely functional.
The Two Voice was professionally serviced this month and is completely tuned and scaled.
It sounds amazing, and plays great.
The sequencer is completely functional is so perfectly designed for this synth.
Included in the listing is the Oberheim TVS-1 as pictured.
Please keep in mind, that while the synth is currently in tune and in scale, if the synth isn’t picked up locally, and requires shipping, I can make no guarantee as to the precision of the tuning or scaling after experiencing the vibrations incurred in shipping.
That being said, I do have a very sturdy box ready to ship the Two Voice in to ensure a safe delivery.” Click here to visit listing on eBay

Oberheim TVS-1

“This listing is for a OBERHEIM TVS1 vintage analog synthesizer.

The unit is in very good cosmetic condition. All inputs, outputs, switches, knobs, keys, and parameters have been tested and work as they should. The item will be professionally packed and shipped.” Click here to visit listing on eBay

Oberheim TVS-1 with Patch Points Mod

“Custom-modified Oberheim TVS-1 two-voice synthesizer, with one SEM replaced by a custom patch panel providing access to all SEM, Sequencer, and Keyboard patch points. Modifications done in the early 90’s by the late great Andy Topeka, keyboard tech for the Rolling Stones, David Bowie, myself, and many others. Modification highlights include a switch to convert the sequencer from 8×2 to 16×1 with blue LED indicator. A full list of mods follows below.

Serious bidder and serious inquiries only.

100% fully functional. The only things missing are the cover (does not exist) and the pot caps on the sequencer. Overall condition is good – very good, but if you’re looking for a museum piece this isn’t for you. Additional pictures to show condition available upon request.

Also Included:

• original schematics and manual
• power cord
• a selection of ⅛” patch cords
• a copy of my original modification and patch panel schematic

As previously stated, this TVS is fully functional. But being a vintage synth, it is being sold as-is, no returns. I will pack it excruciatingly well to prevent damage in shipping.

I have been an ebay member since 1992 and I’ve maintained a 100% feedback rating. You will not be disappointed in the synth, the packing, or the communication you receive from me.

Patch Panel #1
• (2) 1 in/1 out attenuators
• (2) 4-point mults
• (2) KCV outputs
• (2) Quantized AND Analog outputs, one from each row of the Sequencer
• Clock (Step) and Reset inputs for the Sequencer
• Keyboard Gate
• Sequencer Gate

Patch Panel #2
• (2) attenuators to the filter’s inputs, one from the KCV, the other connecting the VCF EG to the exponential response input to the VCF
• (2) VCO CV inputs (one for each VCO)
• VCF CV inputs
• Individual VCF outputs: LP, HP, BP, Notch
• VCA CV inputs
• LFO reset
• (2) EG gate and outputs

Additional Modifications:
• Noise from S/H hardwired to the #1 input of the EXT. pot on the filter
• Line Output switch with red LED on/off indicator, extremely useful for private programming via headphones without sending audio to line out
• Kill Switch for VCO #2 (to prevent any possibility of bleed when using only VCO#1)
• Decay Switch, sets EG#1’s decay to 0 (short to ground). This was originally intended to switch in a fixed-value resistor so that the decay time could be toggled between a specific (short) value and the pot, but this modification was never completed.
• Sequencer: switch provides either normal 2×8 operation or custom 1×16 operation, seamlessly scanning between Row 1 and Row 2. Blue LED indicator illuminates when Row #2 is being scanned.
• Original red LED’s indicating EG trigger replaced by blue LED’s

Additional Notes:
• power cord is a standard IEC type, power receptacle replaced with IEC connector
• original multi-pin connector still present on rear (though I am not sure if it’s connected to anything)” Click here to visit listing on eBay