Abstract: A self-contained knob contains a bushing which fits on a control shaft of a control element and extends axially through each of an annular disk and a pedestal. The annular disk slidingly rests upon the pedestal. The disk and pedestal contain between them a pair of concentric, radially separated tracks of spring loaded balls and cavities. The balls momentarily engage the cavities in arc movement as the knob is turned. The pedestal receives at the bottom and is prevented from rotating by a fastener of the control element.

Abstract: An hermaphrodite electrical connector in which the two substantially identical connector parts are adapted to be associated, after they have been located side by side and pointing in the same direction, by a flip-flop type of relative movement, that is to say, one not involving rotation of the connector units around an axis in the direction of telescoping movement of the parts. When the two connector parts are secured together the engaging contacts are substantially completely enclosed and insulated from adjacent contacts.

Abstract: The connector includes first and second axially mating parts carrying interengageable contact members. A pair of spaced flexible locking arms axially extend from the first part. Each arm includes a body portion and a locking portion, the latter having a pair of laterally extending lobes. The second part has a pair of axially extending recesses terminating in a circumferential groove in which a sleeve is rotatably mounted. The sleeve has circumferential recesses each including a nesting section and a camming section. The sleeve is biased to normally align the nesting sections with the respective axially extending recesses. To lock the parts, the body portions of arms are received in the respective axially extending recesses with the locking portions thereof situated in the respective nesting sections such that radially extending shoulders at either side of the axially extending recesses engage the lobes.

Abstract: The tube socket is especially adapted for use with a longitudinal extending cathode ray tube of the type having one or more high voltage pins and a plurality of relatively low voltage pins. The socket provides structure for spark gap grounding of the high voltage pin or pins, with or without spark gap grounding of the low voltage pins, the latter spark gap protection being essentially conventional. The structure is inexpensive and easy to mold and assemble as compared with prior art socket structures performing the same or equivalent functions.

Abstract: A tube socket is especially adapted for use with a longitudinally extending cathode ray tube of the type having a plurality of high voltage pins and a plurality of relatively low voltage pins spaced apart, with each of the high voltage pins being encased in a protective silo. The socket includes a cap member defining a silo filler open at the bottom thereof and adapted to enter the tube silo. High voltage terminals mounted on the cap member extend into the silo fillers and are adapted to conductively receive the high voltage pins.