Abstract: A reconfigurable chute system for installing continuous elongated tubular material from a plow into the ground involves a plurality of inserts, each insert having a duct through which the tubular material is fed, each duct having a curved section that directs the continuous elongated tubular material from a substantially vertical orientation at an entrance to the duct downwardly and rearwardly to a substantially horizontal orientation at an exit from the duct. The plurality of inserts involves at least a first insert and a second insert, the second insert having a narrower width than the first insert, the second insert nestable with and removably mountable to the first insert while providing a sufficiently large gap in the duct of the first insert between internal walls of the first insert and external surfaces of the second insert to permit feeding of the elongated tubular material through the duct of the first insert.

Abstract: A photovoltaic system includes a first submodule and a second submodule connected in parallel.

Abstract: Luminance signals, subject to high frequency pre-emphasis, are applied to a first double-ended signal clipping circuit prior to combination with chrominance signals (in the form of modulated color subcarrier waves) to form a composite color video signal. The composite signal is fed to a second double-ended signal clipping circuit having clipping levels beyond those of the luminance signal clipper. The output of the second clipping circuit serves as the modulating signal input for a picture carrier frequency modulator.

Abstract: In playback of a video record (e.g., in video disc form) employing a FM carrier recording format, a defect compensation system is provided which substitutes delayed video signals for current video signals when a defect is encountered. The current video signals are obtained from the output of the player's pickup-responsive FM detector (illustratively of the zero-crossing detector type) via appropriate frequency responsive circuitry comprising a low pass filter (encompassing the recorded video signal bandwidth: e.g., 0-3 MHz.). To detect the occurrence of a defect, the FM detector output is also supplied to additional frequency responsive circuitry having a wideband response which desirably extends from DC to an upper frequency limit (e.g., 0-6 MHz.) well above the highest frequency of the video signal subject to recording.