Abstract: An example apparatus includes a speaker housing with a recessed portion having a spring-loaded lip and a set of leads to provide power to the speaker when connected to a lead, and a lead interface plate external to the speaker housing with a set of leads to match the leads in the speaker housing, and when press-fitted into the recessed portion, provides a locked position with one side of the lead interface plate secured in front of the spring-loaded lip.

Abstract: An example apparatus includes a speaker housing with a recessed portion having a spring-loaded lip and a set of leads to provide power to the speaker when connected to a lead, and a lead interface plate external to the speaker housing with a set of leads to match the leads in the speaker housing, and when press-fitted into the recessed portion, provides a locked position with one side of the lead interface plate secured in front of the spring-loaded lip.

Abstract: An example apparatus includes a speaker housing with a recessed portion having a spring-loaded lip and a set of leads to provide power to the speaker when connected to a lead, and a lead interface plate external to the speaker housing with a set of leads to match the leads in the speaker housing, and when press-fitted into the recessed portion, provides a locked position with one side of the lead interface plate secured in front of the spring-loaded lip.

Abstract: A control knob controls jog/shuttle operations on an audio/video payback/record device. The knob is formed of a cylindrical body having an outer portion and a face portion that has convex and concave regions, respectively, integral with each other. The convex region lies centered within, and surrounded by the concave region and with the two regions joined with a smooth radius transition. The smooth radius transition creates a topology that allows manipulation of the knob with only a small frictional force by a single finger of a user (not shown), thus allowing precisely rotation of knob to enter a jog mode at any angular position of the finger.

Abstract: An instrument housing defines a chamber and has a metal shell with an aperture region defining an array of parallel elongated apertures. The shell has an elongated web between each pair of adjacent apertures, and a raised element protrudes from the web. The raised element is spaced apart from each aperture to reveal a portion of the web near each aperture. A resilient, electrically conductive spring element is electrically connected to the web and has a compressible portion extending away from the web, such that a metal plate pressed toward the revealed surface makes electrical contact with the spring and thereby to the shell, and is laterally constrained by the raised element. The raised element may be welded to the web with the spring captured between, or the raised element may be partially sheared to protrude from the web, with an aperture in the spring closely receiving the raised portion with an interference fit.