26 ELECTRICAL, ELECTRONIC AND ELECTRO-MECHANICAL EQUIPMENT FOR USE IN DIGITAL COMPUTER AND COMMUNICATIONS SYSTEMS - NAMELY, LOGIC TRAINERS, POWER SUPPLIES, SCANNERS, DELAY EQUALIZERS, MODULATORS, DEMODULATORS, MODEMS, CALL RECORDERS, COMMUNICATION SYSTEMS FOR COMPUTERS, DEVICES FOR RECORDING AND/OR ANALYZING TELEPHONE TRAFFIC, AND COMPONENTS THEREFOR