RARE 1974 Vako Polyphonic Orchestron (One of only several dozen made!)

This piece was discovered when moving a friend's uncle. Non-functioning, and without discs.

I pulled this from the last listing of one of these Orchestrons found on Reverb:

"An estimated total of 70-100 ORCHESTRON units were built before production ceased after a couple of years. 

Its rarity and popularity amongst lo-fi enthusiasts makes the Orchestron highly sought after.

From Wikipedia:

The Vako Orchestron is a keyboard instrument, which produces its sound through electronic amplification of sound pre-recorded on an optical disc. It is the professional version of the Mattel Optigan.

Vako Synthesizers Incorporated, founded by electronic instrument pioneer and former Moog technician and salesperson David Van Koevering, started to build improved versions of the Optigan under the name Orchestron in 1975. Intended for professional use as an alternative to the Mellotron (hence the name Orchestron), it featured improved recorded sounds over the Optigan. The Optigan was an organ that played its sounds from light scanned graphic waveforms encoded on film discs. The sounds with the highest fidelity were on the outer rings of these discs. These outer rings were used for the Orchestron sounds to improve the sound. Although the model A Orchestron is identical to the Optigan, the model B, C, and D models follow the designs of the Chilton Talentmaker. The Talentmaker was taken out of the market after Optigan's manufacturer – Optigan corporation, a subsidiary of toy company Mattel – threatened to sue Chilton because of patent infringements.

Some Orchestron models included sequencers and synthesizers. These were the larger model X and Phase 4 units, though very few of these made it past the prototype stage. While the same fidelity limitations of the Optigan applied to the Orchestron, these instruments were built to be more reliable and were used successfully in commercial recordings. 

The band Kraftwerk made heavy use of the Orchestron on their albums Radioactivity and Trans Europe Express. 

In 1974, The band Yes used the Orchestron on their Relayer album. The Orchestron wasn't a commercial success, though. 

An estimated total of 70-100 units were built before production ceased after a couple of years. Its rarity and popularity amongst lo-fi enthusiasts makes the Orchestron highly sought after."