Voltage adapters (to increase or decrease voltage); patch cord connector adaptors (required in the electronics industry); alarms and alarm systems (as found in industry or for the purpose of security signaling); public address amplifiers (mobile and fixed type as found in fire and police vehicles or used in stadiums and ball parks); antennas (of all types, mechanical or electronic); antenna rotators (to rotate an antenna); lightning arresters (to safely conduct lightning to ground); voltage and current attenuators (of the resistive or inductive type); baffles (covers affording protection to inner components); barrier and terminal blocks (as found in electronic terminating panels); belts (dial drive and motor drive); bezels (raised rim or border as found in electronic digital displays or electronic metering); parts or component bins (for component storage); printed circuit boards (electronic circuitry on a board); bolts, nuts, insulators, rivets, fasteners (as associated with the assembly of electronic components); books (of a nature conveying information, electronic, electric or mechanical); boxes, cabinets and enclosures (as used to house electronic, electrical or mechanical components); breadboard assemblies (as required for the proto typing of electronic circuitry); rectifier bridges (as used to rectify alternating current); bulbs and lamps (incandescent, gas discharge, neon etc.); buzzers (for signaling or alarming); cables (single or multiple, electronic conductors); capacitors (electronic and electrical); cases (for protection and transportation of electronic test equipment, tools or components); cells (as in solar cells, gas discharge or energy); chassis (as required for constructing or enclosing electronic, electrical or mechanical components); electronic chemicals (as required in the industry for cleaning, lubricating, insulating, cooling etc. of electronic, electrical and mechanical equipment); clamps and clips (for component assembly); coil assemblies (electronic pre-wound coils); connectors (as required for terminating single or multiple conductor cables); connector adapters (as required to adapt different component styles to make them compatible); controls (electronic, electrical or mechanical); converters (electronic devices used for converting one form of energy to another or one frequency to another); cords (to supply energy to an electric or electronic device); crystals (as required for the electronic generation of a stable signal); demagnetizers (as required in the electronics industry to reduce the noise level of static in video or audio reproduction); desoldering tools (used to remove electronic components without destroying the component); detectors (of the diode rectification type, or as required complete with associated circuitry for the detection of metal); dials (as used to indicate a relative volume level or frequency position); drills and accessories (electric or electronic drills and accessories as associated therewith); battery eliminators (a device required to produce or convert electrical energy); printed circuit etchants (as required in the chemical process for production of electronic printed circuits); fasteners (for securing electronic components); fault finders (of a diagnostic electronic or electrical nature); feedthrus (insulators); flashers (electronic pulsing devices); fuse clips (electric or electronic fuse holders); fuses (circuit protection devices); grilles (a cover over an electronic device allowing air circulation); grommets (rubber or plastic feedthru insulating devices); soldering guns (electronic or electric soldering tools); handsets (a transmitting/receiving device as used in a telephone); hardware (for mounting, repairing or assembling electric or electronic equipment); heat shrinkable tubing (insulation or protection for electronic or electrical wiring or connections); heat sinks (devices required for the safe conduction of heat away from temperature sensitive circuitry); public address horn speakers (for reproduction of sound at high levels); headphones (as used for monitoring aircraft radio, radio station operational monitoring, etc.); insulators (as required to divide components carrying energy at different levels); intercoms (for communication over reasonably short distances); inverters (a device used to change direct current to alternating); jacks (a female electrical or electronic connector); electronic or electrical hobby kits (a package or components and instructions offering everything necessary for the user to construct a working model from the parts); knobs (as found in the electrical, electronic or mechanical trades); lacing cord for supporting and neatly tying electronic or electrical wiring in place); lamp holders (for the support and electrical connection of all light producing devices); L.E.D.'S (light emitting diodes of the semi conductor family); lenses (a part of a lamp holder assembly to direct or diffuse light); lubricants (see chemicals - as related to the electronics industry); meter cases (electronic analog or digital meter enclosures or leather or plastic carrying cases); public address microphones (for major P.A. system applications); meters and test equipment (for function monitoring and testing in the electronic, electrical and mechanical trades); master antenna signal distribution systems (as required for the distribution of signals (TV - FM - AM - UHF) from one antenna interception point to multiple outlets as in a major hi-rise complex); megaphones (to reinforce audio distribution on a portable basis); public address systems (complete systems for such applications as forest fire fighting, auto racing etc); phones (of the telephone or intercome variety); plug and jack sets (of a variety and physical configurations designed for interconnections of electronic equipment or test gear); binding posts (for the termination of electronic circuitry); potentiometers (controls of the carbon or resistive wire type); power supplies (any device supplying electrical energy either alternating or of the direct current nature); probes (instruments for interconnection or testing); patch cord (for interconnection of electrical or electronic equipment); printed circuits (complete electronic circuits etched chemically into a copper clad circuit board); regulators (for the regulation of current or voltage in a circuit); relays (electro mechanical switches); resistors (electronic devices required to control current flow in electronic circuits); screws (for electro mechanical mounting); shunts (as required in meter movements); sockets (to support electronic components such as integrated circuits, etc.); solder (for the connecting of elements by the application of heat); soldering irons and accessories (as required in the electronic/electrical trade as tools of the trade); spacers (as required in the electronics trade); spaghetti (trade term for insulating tubing used on wire splices); splitters (for dividing incoming televison signals for use at several outlets); strain reliefs (as required on power cord installations to protect cord from being torn from chassis); suppressors (for electronics noise suppression); switches and switch hardware (all types such as toggle, push button, mercury, printed circuit, dip and thermal); security systems (to include automotive home and industrial security systems of the hard wire type electrical eye type ultrasonic or RF transmission type); semiconductors (to include all families of semis such as diodes, integrated circuits, optical devices, field effect devices, LED devices, liquid crystal devices, etc.); insulating electrical tape (fabric and polyvinal types); terminals (for wire terminating); test equipment (as related to the electronics, electrical and mechanical industry); thermistors (temperature sensitive, resistive components); tie straps (for binding cable bundles); tools (to include all hand tools that would be found in the electrical, electronic or electro mechanical industry); transformers (of the wire wound variety as required in electrical/electronic circuitry); telephone accessories (to add or delete phones to an existing system (cords, plugs, jacks, adaptors); wire (as found in the electrical/electronics industry).

Operation of stores marketing phonograph records, tapes and sound equipment, namely high fidelity amplifiers, tuners, preamplifiers, loud speakers, phonograph needles, turntables, record changers and receivers.

Two-way radio communication equipment, consisting of transmitters, receivers and transceivers, and accessory equipment therefor, including microphones, mounting brackets, aerials, power amplifiers, power supplies, decoding equipment, crystals, encoding equipment, tone signalling equipment including radio paging receiving devices; mobile stereo equipment, consisting of car radios (AM, FM, AM/FM, and AM/FM stereo), tape players (8-track and cassette), combination tape players and radios, car speakers, aerials and frequency converters and cordless telephones and accessories therefor.

Installation and repair of two-way radio communication equipment, car radios and tape players and cordless telephone products.

Self-contained games of skill and chance.

Computerized equipment for entertainment, amusement or educational purposes, including audio-visual units utilizing pre-programmed cassettes and cartridges, and cassettes and cartidges therefor, information storage and display devices.

Operation of a retail stereo, sound and electronic equipment store.

Stereo and sound equipment.

Marketing of audio equipment.

Loud speakers, loud speaker assemblies, records and tapes.

Integrated circuits, and discrete semiconductor devices.

Magazine periodicals.