Belived to be a prototype of the first of the 430 control desks, which was installed at the Northcott Theatre, Exeter once the desks were in production. It was used for many years until it was replaced by a 500 series console, and then an ETC Gio.

QDOS Alpha 1
From Backstage Heritage Collection
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QDOS Alpha 10
From Backstage Heritage Collection
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QDOS Alpha 11
From Backstage Heritage Collection
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QDOS Alpha 12
From Backstage Heritage Collection
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QDOS Alpha 13
From Backstage Heritage Collection
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QDOS Alpha 14
From Backstage Heritage Collection
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QDOS Alpha 15
From Backstage Heritage Collection
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QDOS Alpha 2
From Backstage Heritage Collection
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QDOS Alpha 3
From Backstage Heritage Collection
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QDOS Alpha 4
From Backstage Heritage Collection
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QDOS Alpha 5
From Backstage Heritage Collection
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QDOS Alpha 6
From Backstage Heritage Collection
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QDOS Alpha 7
From Backstage Heritage Collection
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QDOS Alpha 8
From Backstage Heritage Collection
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QDOS Alpha 9
From Backstage Heritage Collection
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