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EQUIPMENT & SUPPLIES, CONTINUEDPower Supply, Multiple Voltage Battery EliminatorThis convenient, fixed-voltage power supply substitutes for a variety of batteries. Select the voltage with a simple dial. To protect sensitive electronics, precision-designed supply ensures that the output voltage does not increase during range adjustments. Connections are provided by two 4-mm banana jacks. A fuse in series with supply output provides short circuit protection. Plugs into a standard electrical outlet, 120 V AC, 60 Hz, 1 amp max.AP5375 I $107.90Hook Weight Set, Economy ChoiceBlack-painted weights have a non-movable hook on top. Weight bottoms are recessed and contain a weigh-below bar that allows weights to be hung from each other. Weight set includes one each of 10 g, 50 g, 100 g, 500 g and 1 kg and two each of 20 g and 200 g. Supplied in a plastic storage block.OB2066 I $49.95Meter SticksAn array of meter sticks for all kinds of measurement applications. Available in hard-wood and plastic with English and metric gradiations, single- and double-sided, flat and cubic.$2.90–$15.50 7 options available at flinnsci.comAlligator and Connector CordsA variety of connector cords for various applications, from lamp boards to circuits. Several lengths available individually in red or black with alligator clips, banana plugs or both. Also available for basic circuitry experiments is a set of the 18” alligator-clip connector cords in five different colors with safety protective sleeves over the clips. $1.80–$10.25 9 options available at flinnsci.comBatteriesFlinn offers a variety of batteries for general applications. Alkaline batteries include AAA, AA, C, D, 6 V and 9V. AA, C and D rechar-gable batteries are also available. A silver oxide 1.5 V battery (#357) is ideal for pH meters, calculators and watches.$1.95–$23.80 10 options available at flinnsci.comLight BulbsFlinn offers a variety of lightbulbs for physics and physical science applications. Miniature bulbs for lamp boards and receptacles range from 1.2–6.15 V. Other 15 and 150 W bulbs serve general applications.$1.25–$9.40 8 options available at flinnsci.comAir TrackDurability and maintenance-free performance are the benchmarks of this air track system. Designed specifically for introductory mechan-ics, its student-proof design can also double as a precision optics bench. Obtain accurate results in your classic acceleration, conser-vation of momentum, collision and oscillator experiments. One-piece extruded aluminum, the clear, anodized track has a full-length meter tape and guide groove for spark paper. AP5615 I $742.60