related tags: 3B776B 4A6862 675F62 7E7E95 84838F 9094B3 929B8A 92A382 98A9D5 999BAB A7B0C5 AABBE4 B9C1D5 C5AFA1 CDC6AD D7AB90 DCD09D EEEDE3 F4F1DE controlboard electronic music oberheim obx schematic synthesizer 656163