287	ELECTRONIC COMPONENTS, REPLACEMENT PARTS, AND ACCESSORIES: AND MISCELLANEOUS ELECTRONIC
	EQUIPMENT (NOT FOR TESTING OR ANALYZING -SEE 730)
28706  *	Amplifiers and Preamplifiers (Not for Sound Systems or TV Antennas)
28712  *	Batteries and Hardware (For Electronic Equipment)
28718  *	Chemicals for Electronics Use: Antistatic, Cleaning, Degreasing, Etching, Metal
	 Stripping, Solvent, etc.
28724  *	Circuit Boards, Modular, Printed (PCB), and Proto
28730  *	Detectors (Electron, Photon) and Detector Arrays
28736  *	Metal Items: Boxes, Cabinets, Chassis, Panels, Racks, etc.
28742  *	Microprocessors (CPU Chips, etc.)
28748  *	Microwave Equipment and Accessories: Band Pass Filters, Coaxial Attenuators, 
	 Couplers, Switchers, Tuners, Wave Guides (Not Communication Type)
28754  *	Power Supplies, Computer Room
28755  *	Power Supplies (Not Computer Room)
28760  *	Repair Equipment, Electronic: Cleaning, Desoldering, Soldering, etc.
28766  *	Replacement and Component Parts: Capacitors, Chokes, Coils, Panel Meters, 
	 Potentiometers, Relays, Resistors, Solenoids, Transistors, Transformers, etc.
28772  *	Shelf Hardware, Electronic: Adapters, Clips, Connectors, Dielectrics, Jacks, Lugs,
	 Plugs, Sockets, Solder, Switches, Terminals, etc.
28778  *	Teaching and Demonstration Units: Electronic Kits, etc.
28780  *	Testing Equipment and Systems, Electronic Meter
28784  *	Tubes, Electron Multiplier and Photomultiplier; and Accessories
28790  *	Tubes, Electronic: Cathode Ray, Power, Receiving, Thyratron, Transmitting, etc.
28796  *	Wire and Cable, Electronic: Audio, Coaxial, Hook-Up, Lead-In, etc.