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Synthchaser #095 – Oberheim OB-Xa Keybed Switch Matrix Repair

In this video we track down a problem that’s causing a range of keys to be dead on this Oberheim OB-Xa. I explain what a switch matrix is and how it’s used by synthesizers to scan the keybed–this is still the way things are done today! And we use our new knowledge of switch matrixes to repair the OB-Xa.