Abstract: A light pipe for transmitting LED-emitted light from a printed circuit board through an opening in a panel. The light pipe has a first light-transmitting member with a first end for emitting light, a second end connected to a connecting portion for attaching the light pipe to the printed circuit board, and an outer surface. A groove in the outer surface and clip members are used in various combinations to removably fasten the light pipe to the panel. The groove and clip members permit easy insertion and removal of the light pipe. Alternative embodiments include a plurality of light-transmitting members aligned in various configurations.

Abstract: The enclosure is intended, among other uses, for a rack-mounted electronic musical instrument characterized in that screws are not required to secure the assembled parts of the enclosure. Top and bottom molded plastic halves (preferably identical) have integral flexible hooks and also projections. The halves have inward turned edges which fit together and mate at the horizontal mid-plane of the enclosure. A generally U-shaped thin, narrow sheet metal core engages the back and both sides of both halves inside the edges of the halves and is formed with holes into which the distal ends of the hooks snap and thus lock the halves and core together. A plastic front panel also has horizontal flexible hooks which snap into holes in the core to close off the front of the enclosure. Outward extending ears on the core may be used to attach the enclosure to a rack.