Library

Versions of Generic rack audio unit, 1U, microphone preamp

Published versions never change. A new license, new data or new geometry is always a new version; people who used an older one keep it.

Drawing	Version	Change	License	Status	Published
	Version 2	GeometryAdded the rack-width body, the front panel with ears and four rack screws and eight knobs and a headphone jack (plan and 3D).	CC0	Published	Nov 3, 2026
	Version 1	GeometryFirst version.	CC0	Published	Nov 3, 2026