Magnets; Magnetic clamps, namely, magnetic metal clamps with a magnet base for fastening clamps against magnetic surface, sold as a unit, specially adapted for holding electronics in the nature of printed circuit boards for testing circuit boards, and assembling surface-mounted and hole-mounted devices on circuit boards; Metal clamps specially adapted for testing electronic circuit boards for electronics; metal clamps specially adapted for electronic circuit boards for use with assembling surface-mounted and hole-mounted devices on circuit boards for electronics; Magnetic clamps specially adapted for electronic circuit boards for use with assembling surface-mounted and hole-mounted devices on circuit boards for electronics; Magnets for fixing electronics during testing and assembly; Clamps specially adapted for use with printed circuit boards; Holders specially adapted for use with printed circuit boards; Holders specially adapted for use with electronics, namely, holders for holding printed circuit boards; Probes for testing printed circuit boards; Printed circuit board contact probes; Probes for testing and assembling electronics; Probes for testing and assembling printed circuit boards; Probes being parts of Oscilloscopes; Probes being parts of digital Multimeters; Probes being parts of Logic analyzers; Probes being parts of recorded computer programs used by programmers to test and debug hardware via chip-level diagnostic interface; Probes for programmers, namely probes that connect parts of a computer programming tool used to create, debug, maintain and support programs and applications to hardware via chip-level diagnostic interface; Probes for scientific purposes; Probes for testing semiconductors; Probes for testing integrated circuits; Test probes, namely, test pins for testing functionality of printed circuit boards; Test pins for testing printed circuit boards; test needles for testing and assembling electronics, namely, printed circuit boards; test adapters for testing printed circuit boards; Workstations for testing and assembling electronics comprised of holders adapted for use with printed circuit boards, probes for scientific purposes; Base plates for fixing electronics during testing in the nature of metal magnet plates for laboratory use for plates for fixing magnets; base plates for fixing surface mounted devices and hole mounted devices on circuit boards during assembly in the nature of metal magnet plates for laboratory use for fixing magnets; Fixing plates for testing electronics in the nature of metal magnet plates for laboratory use for fixing magnets; fixing plates for assembling surface-mounted and hole-mounted devices on circuit boards in the nature of metal magnet plates for laboratory use for fixing magnets; Test benches in the nature of testing apparatus for testing printed circuit boards comprised of holders specially adapted for use with printed circuit boards, probes for testing printed circuit boards and base plates for fixing electronics during testing, sold as a unit; digital multimeters; Oscilloscopes; Logic analyzers for testing electronics; Circuit testing instruments, namely, continuity test apparatus for electrical circuits; Computer component testing and calibrating equipment; Testing apparatus for testing printed circuit boards; Ammeters; Digital multimeters; Connecting electric wires for prototyping electronics; Connecting electric wires for testing electronics; Connectors for electronic circuits; Alligator clips, namely, electric connectors; electric connectors for electronic circuits; Wire connectors; Wires, electric; electric wires for testing and assembling electronics; electric wire harnesses for testing and assembling electronics; parts for digital multimeters, namely, multimeter leads; Test leads, namely, electric wires; electric wires for connection to Multimeters; electric wires for connection to Oscilloscopes; electric wires for connection to Logic analyzers; electric wires for connection to debuggers, being computer programs used by programmers to test and debug hardware via chiplevel diagnostic interface for connecting probes to other hardware; electric wires for connection to programmers, being, recorded computer programming and software development tools used by software developers to create, debug, maintain, or otherwise support other programs and applications connected to the target hardware via chip-level diagnostic interface; Printed circuit boards; Printed circuit expansion boards