A few pics in via @BLightningM. You might remember the S3-6R from previous posts. The wood panel conversion kit is from R-MONO Lab. Some pics starting with the JU-06 captured from their site below.
"Legendary 70's synth. The Transcendent 2000 was one of the first commercially available synths to be available to the public. It was sold as a kit and this one was built by myself. It was never used in anger and was put away with other band gear in a store room. Now I am having a clear out and it's up for sale.
There is lots about this synth on the internet. Designed by Tim Orr this type of synth was popular in the late 70's early 80's and in particular was used by Joy Division. These are fairly rare beasts , especially a working one. I have checked the synth out and adjusted some of the key contacts to give better contact / overtravel. This was a weak point on these synths as they are fairly delicate. So here we have a fully working example of this traditional analogue synth. All the keys work , all the controls work. Overall it is in good condition for its' age. It is monophonic ( one note at a time) but has some great sounds /effects. If you are not familiar with this synth please note it must be plugged into a sound system/ amplifier etc. in order to use it , ie. no built in sound system but that's pretty standard for a synth."
"The Korg EX-800 is an 8 voice polyphonic synth and this one is in really good shape (which I paid £300 for). This synth has been modified and includes additional knobs for - Filter cutoff, Resonance, pseudo FM amount , Noise + a switch to choose a 12dB or 24 dB filter. The desktop version is very hard-wearing with its metal case, also giving it a good weight.
I have also modified it further by installing the HAWK-800 upgrade (the kit costs about £100 to buy + my time to install) which adds an unbelievable amount of features to the original synth. If you go to https://www.hawk800.com/ this explains in detail all the extras you get from it."
I forgot to re-tune the thing before recording (it was still using the old samplerate tuning words) so it is not tuned to A = 440Hz, but otherwise it is of course IN tune so no difference there :P"
"Outrun soundtrack Passing Breeze as you've never heard it before! Remixed using Dexed VST plugin emulating the sound of the legendary 1983 Yamaha DX7 FM synthesizer.
The original arcade hardware also used a primitive form of Yamaha FM synthesis so this version has similar sounds but in much higher fidelity.
So enjoy once again the sound of the Yamaha DX7 electric piano and bass patches, put through a touch of TAL Chorus (an emulation of the Roland Juno-6 analog chorus).
Sega Out Run (アウトラン Auto Ran) arcade music was provided by Hiroshi Kawaguchi, who had previously composed soundtracks for other games designed by Suzuki, and who was part of Sega's official band at the time, the S.S.T. Band. Out Run was the first video arcade game that allowed the user to choose the background music. The soundtrack comprised both jazz music (similar in style to that of fusion band Casiopea) and Latin/Caribbean music (similar to Miami Sound Machine). In all, three selectable tracks were featured: Passing Breeze, Splash Wave and Magical Sound Shower. An additional track, Last Wave, played at the final score screen.
Here is some information about the sound chips used in the original arcade hardware, as you can see FM synthesis is used here too.
"S3-6R Version 3 #S3_6R https://r-mono-lab-en.tumblr.com/products/S3-6R 
