"Yamaha TX416 Rack Mount FM synthesizer. This is a TX 816 rack with 4 modules. It has the legendary Yamaha FM synthesizer sounds that were used on so many hits in the 1980's. Basically it is 4 DX7's in a rack. From beautiful bells to Rhodes piano's and Marimbas it has a unique sound and when layered it sounds fat and so musical. I used this on many hit records from Luther Vandross,Miles Davis, Roberta Flack, Chaka Kahn and many more. I am also throwing in the Beetle programmer that makes programming it a breeze. It was not working because I need a AC adapter for it-But if you buy this it will be worth looking into getting it as it makes programming a breeze. The 416 has been in The same rack for years just sitting there-Time to get somebody to use it"
This is a RARE Beetle PR-7 Programmer for YAMAHA DX / TX series sound edition.Made is USA.3U space rackmount. The display has been change new LCD.including AC 120V power supply. Excellent work condition shawn as the photos."
"Back in the early 1980s there was an adventurous startup in the Los Angeles area by the name of Beetle Inc., founded by a couple of very smart electrical engineers who were making advanced computerized musical equipment. That is, until Yamaha forced them out of business with threats of lawsuits. But not before they managed to get a small number of unique products into the marketplace, including the PR-7 programming module. This device connects to the Yamaha TX-7 FM synthesis module via two midi cables and controls it with exactly the same functionality as the control panel of the Yamaha DX-7. Excellent condition. See separate listing for the companion TX-7 module."
You can see one in action here. Apparently this works with the TX216 and TX816 as well.
Beetle PR-7 Programmer for the Yamaha TX7, TX216, and TX816 FM synthesizers
Published on Jul 17, 2012 ymarcc·23 videos
"This is a pretty rare Beetle PR-7 hardware programmer for the Yamaha TX7, TX216, and TX816 FM synthesizers. I posted the video in connection with an eBay auction (it's now sold).
I'll keep this posted for folks since right now this video seems to be the only one on YouTube of a PR-7. Too bad I didn't have a compatible synth to use it with.
From the manufacturer:
'The PR-7 is a control panel designed exclusively to control the Yamaha TX7, TX216 - TX816 FM tone generator systems. Programming of patches is now possible with a mock-up of a DX7 front panel including a backlit LCD adjustable display and ROM/RAM cartridge port. Other features include a midi in to allow key data to be sent for audible feed back while working with sounds, cartridge load/save to any module and is rack mountable if desired.'"