Norlin Industries, Inc.

Norlin Music, Inc.

Roger Flavius Cox

Robert A Moog

A reversible bracket assembly for use with an electronic apparatus bearing housing or the like includes an elongate plate having opposed sides each suitably fastenable to the side panels of the housing. A mounting flange extends transversely of and integrally from one end of the plate and a handle member extends integrally from the other end of the plate. The plate is fastenable to the housing with one of its sides in abutment with the housing side panels for facilitating portable transportation and use of the housing by means of the handle members and with its other side in abutment with the housing side panels for facilitating mounting of the housing within a standard equipment rack through the agency of the mounting flange.

Reversible mounting bracket

A sound effect circuit with a phase shifter producing a signal shifted in phase with respect to an input signal, a combining circuit for arithmetically combining the input and phase shifted signals to produce an output signal, an oscillator for periodically modulating a characteristic frequency of the phase shifter and a modulation control circuit. The modulation control circuit causes the modulation rate to gradually increase when modulation is manually switched on and to gradually decrease when modulation is switched off. The modulation control also causes the characteristic frequency to vary inversely with the modulation rate. The system defined by a part of the circuit producing a first output signal proportional to the sum of the input and phase shifted signals has a comb shaped frequency response curve and a part of the circuit producing a second output signal proportional to the difference between the input and phase shifted signals has a comb shaped frequency response curve inversely related to that of the summing part of the circuit. When the two output signals are fed to separate speakers, the total frequency response curve of the two systems taken together is substantially flat, but the distribution of energy in the frequency spectrum moves in space as the modulation proceeds to produce a new 'stereo phase shift' sound effect. A rotary potentiometer for mixing the first and second outputs signals with each of the input signal and the phase shifted signal in selected proportion provides a third output signal with selectively variable characteristics.

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Northbrook, IL, United States of America

Roger Flavius Cox