Abstract: An improved seal for electronic components is disclosed, having a hydrophobic, microporous membrane sealed about a housing aperture to provide substantial internal to external pressure equalization during temperature and pressure variations encountered during the solder and cleaning process, while substantially sealing the housing aperture from damaging amounts of external contaminating fluids.The microporous membrane may be secured to a non-porous tape about a tape aperture, and the tape may be secured to the electronic component housing about the housing aperture; or the microporous membrane may be secured directly to the housing about the housing aperture.The hydrophobic, microporous membrane may be permanently sealed to the electronic component housing about the housing aperture; or the microporous membrane may be removed after the solder and cleaning process is completed. A tab portion may be secured to the microporous membrane for ease of removal.

Abstract: A machine insertable miniature DIP switch (10) comprises a housing (12) insert molded about a plurality of terminals (40). The terminals (40) are oppositely disposed pairs having interior portions (44) located within housing chambers (30) formed by transversely extending walls (20), with the ends of the pairs of terminals separated by an open area (A) comprising a depression. An actuator (60) includes an upward extension (64) above a top plate (62) with a contactor receptacle (66) located therebelow, a depending detent wall (68) with a detent protrusion (70) on one side of the actuator, and an oppositely disposed depending actuator side wall (72). The detent protrusion (70) is received by detent openings (22) within the associated transverse wall (20), top plate extensions (63) are positioned over the associated transverse wall, and the oppositely disposed actuator side wall (72) is positioned for engagement with a shelf (24) located in the associated transverse wall.

Abstract: A peak detector is comprised of two related circuits having similar circuit parameters, each providing an output in response to a repetitive waveform applied to the detector. The two outputs are combined to eliminate the dependence on the circuit parameters to provide as an output of the detector an accurate, wideband peak voltage of the applied waveform.

Abstract: A slider consisting of a one or two piece body with resilient contact switch members projecting in opposite directions at spaced intervals along the length of the slider to be in contact with a collector plate on one side and a respective one of spaced contactors at the opposite side. A plurality of ribs or protuberances which are located in the line of movement of the switch members, causes resilient deformation of the switch members to hold the switch in position once it snap fits into one or another of its respective switch positions. The protuberances may be either projections formed integrally in a switch body or on the collector plates.