Abstract: Methods and apparatus for reducing replays in the recording of live musical performances, and for other recording purposes, are disclosed. The apparatus includes novel audio frequency electrical signal processing devices which can be incorporated in re-recording systems by means of which "flat" recordings of original "live" instrumental and musical performances are re-recorded via effects boxes and instrument amplifiers which are different or differently set than the equipment used in making the original "live" recording, and thus the resulting re-recordings have the same apparent sound quality as recordings originally made "live" through the same effects boxes and instrument amplifiers set in the same way. The disclosed signal processing device of the invention includes an output trim control and a ground lift switch. Also disclosed are re-recording systems of the invention, and re-recording methods of the invention.

Abstract: A mounting bracket including a flat elongated frame having front and rear faces and opposing ends for attaching to adjacent wall studs. The bracket has a central cut-out portion which defines top and bottom members. The open front end of an electrical box is placed flush against the rear face of the bracket and contacts the top and bottom members of the bracket. The front face of the box is substantially flush with the plane formed by the wall studs regardless of the depth of the box. Boxes are stabilized against disorientation relative to the cut-out portion by upper and lower spaced-apart tabs that protrude from the rear face at a selected angle to engage the upper and lower surfaces of the box. An accompanying faceplate is placed on the front face of the bracket opposite and aligned with the box and in contact with the top and bottom members.

Abstract: An anchoring device for anchoring a shaft in relatively hard ground including an elongated shaft having a ground penetration member. The penetration member includes a coiled extension portion extending longitudinally beyond the shaft lower end to facilitate penetration of the ground when rotated in one direction. The coiled length of the extension portion is sufficiently short to resist substantial uncoiling of the coiled extension portion during penetrating movement into the relatively hard ground. In another aspect, a retaining device is provided for selective penetration of the ground at a second location spaced-apart from the first location to substantially prevent rotational movement of the shaft about the longitudinal axis for removal thereof from the ground.