Future Retro Revolution

images via this auction

Note the F R on the side panels.

Studio Electronics Orion

Link

via digitizer

GAKKEN SX-150 MIDI MOD

You can find details on the mod in Japanese here. In Googlish

via HobbyMedia.it - be sure to check it out for more.

2 ARP 2600s

images via this auction

Looks like they went for $7500. Both have the 4012 filter, one has the earlier 3604-P keyboard

10 Step Sequencer

YouTube via hillbillyshaman. You can find more of hillbillyshaman's videos here.
"10 Step Sequencer Based on CMOS and PLL"

Patchable Synthesizer

YouTube via hillbillyshaman

LIVEWIRE AFG, PLAN B M14, SERGE VCO

LIVEWIRE AFG

YouTube via cray56

【DEMO】Gakken SX-150

YouTube via musictrackjp. Note these are available on Ebay here.

Four synthesizer comics from Wire to the Ear.

Check them out on Wire to the Ear.

OPL module (for FM synthesizer)

flickr by fibra
(click for more)

Anyone know more about this?