Abstract: A multiple remote controlled down rigger and planing board system includes a central control unit that produces control signals for a plurality of remote controlled units disposed near reversible motors controlling the respective down rigger and planing board systems. The central controller includes a memory and input device for accepting input commands from the user at the central location and a position signal generator for generating position signals and control signals causing the down rigger and planing board fishing system to oscillate either in depth or in distance from the boat. The central unit also includes a display showing line depth and distance. The remote controlled units include means to override the control signals from the central control, each remote unit includes a local means for displaying line depth.

Abstract: An indelible mark (26) is produced on an article of manufacture (17) for indicating a defective article. In the preferred embodiment a bonded lead frame assembly (17) which has a lead frame site (14, 15) with a semiconductor die (18) and cracked ceramic substrate (20) bonded thereto is indelibly marked by causing a spark to occur from an electrode (25) to the bonded lead frame assembly (17) in the vicinity of the lead frame site (14, 15) having a cracked substrate (20).