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Thermal Sensor
Heat switch that is normally open below 135° F and closes at higher temperature. Imagination is the limit here. We don't have formal electrical ratings but believe it can handle about 2 Amps @ 120 VAC. It can be used (perhaps with a relay) to trigger a fire alarm when mounted near a furnace, in a garage, or in an attic. How about using it to shut off electronics or motors when overheating occurs? Or to activate a fan for cooling? Use it to record how long the furnace is on to rate its efficiency. 5/8" dia x 3/8" sensor head with (2) 1/4" x 1-5/8" long fixed leads.
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25813 HEAT SWITCH, 135DEG F |
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A Snarl of Magnet Wire
One of those sharpie East Coast outfits pulled a fast one on this poor naive Midwestern dealer. The result is we have a pile of exotic coated copper magnet wire. The coatings and colors vary widely, as does the gauge of the wire. With a couple of exceptions there isn't enough of any one kind among the hundreds in the pile to list separately. So we are offering an assortment and you get whatever we grab. Either way you will get a terrific value, particularly if you have an exotic application and get just what you need. Even if you are just making a garden variety coil or electromagnet you will still find the prices are very good. So go ahead, profit from our misfortune. We are glad to be of service. Sigh.
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36227 MAGNET WIRE, 16 GA | |
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36228 MAGNET WIRE, 20 GA | |
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22146 MAGNET WIRE, 21 GA | |
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36229 MAGNET WIRE, 24 GA |
Hot Hot!!
This flash heating element out of a coffee maker really heats in a hurry!! It is designed only for use with a regulating heat switch (not included) and will melt itself in less than a minute if turned on un regulated with no water or other contents. It draws 8 amps @ 120 VAC max. 2" dia x 2-1/2" tall, OA. It holds about 1 oz. and has (2) spade terminals. A wonderful item when used correctly.
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32451 FLASH HEAT POT |
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Peltier Heat Pump
High tech comes to Am Sci & Surp!! It is here in the form of a Peltier junction, a thermo-electric device that translates electric power into heat, and perversely, into cool. Apply current @ 3-12 VDC to the gizmo and it extracts thermal energy from one face, thereby cooling it. The heat is dumped onto the other face, thereby heating it. Please note: you must use a heat sink on the hot side or the junction will fry itself, since it can quickly create a 65° C temperature differential in a no load situation. Stack two, or build a cascade to increase the thermal differential created. Or run it backwards. Apply heat or cold to the relevant face and produce a current. Amazing for science projects and experiments. Practical for coffee warmers, beer coolers and mini-refrigerator or warming oven applications. Comes with instructions. Large is 1-9/16" sq. x 3/16" thick.
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89143 LARGER PELTIER JUNCTION |
Click...Click...Click...Click
Too late. Your battery's a dead duck. You shoulda called us. We'da sent you our 6-and 12-volt battery tester. Tests your starter motor and alternator (or generator) too, and has a switchable 100A load. Comes with (2) 16" cables with copper-plated 2" clamps with teeth on the side in case your battery has those "just try to get a grip on these, pal" side terminals. Will measure 50-1000 cold crank amps and its meter will measure 1-16V. The unit measures 12-3/4" x 6" x 3" OA. From Omaha Industrial Tools.
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92898 BATTERY TESTER |
Light 'n' Laser Twofer
A bright little flashlight with (8) super-bright white LEDs in a circle and a less-than-5mW red laser right in the middle. One click and it's a flashlight, another click and it's a laser pointer. (Note: flashlight and pointer can't be on at the same time.) Measures 4-3/8" long x 1-1/8" dia in dark silver, red or blue aluminum with knurled grips at both ends, and comes with a black-canvas belt pouch and a wrist strap. Lasts 30 hours on a set of new alkaline batteries (3 "AAA" heavy duty batteries included).
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93094 2-IN-1 FLASHLIGHT |
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Step On It
Perfect for hands-on hobbyists. Foot-pedal speed controls free up your paws to do the real work. This one's for 120VAC devices, and ideal for machines using approx 200W or less. Measures 5" x 3" x 2-1/4" tall, with a 6-foot cord that plugs into the wall and a grounded female plug for your sewing machine, rotary tool, scroll saw, or, if you really make a lot of banana Daiquiris, blender.
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93239 FOOT PEDAL |
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