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Circuit Breaker/ Alarm Assembly
Tied together are (2) 15A @ 250 VAC breakers that trip on 18.8A and (1) breaker that trips on 10 VDC One of the (2) 15A @ 250 VAC breakers has an integral NO/NC microswitch arranged so that when the breaker trips, it is too, which could be useful to trigger an alarm or warning light. Although mechanically ganged, the breakers are electrically independent. You can ignore the load breaker and use the other two or even just the one with the integral alarm circuit.
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29721 CIRCUIT BREAKER ASS. |
Magnetic Picker Upper
A telescoping arm rather like a car radio antenna holds an alnico magnet at the end via a double ball joint. Closed is 5/16" dia x 5-1/2" long, perfect for a shirt pocket, right down to the clip. Open it is just under 2 ft long including the swivel head, perfect for fishing under the radiator, in the depths of the bilge or at the back of the rattler's cage.
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89589 TELESCOPIC MAGNET |
All The World's A Stage
...and we are merely microscopes? Develop your own (better) metaphor with this solid black plastic microscope stage, 5" x 4", another fine product from the old Soviet Union. With a 1-7/32" dia hole in the center and a threaded 1/8" dia hole straight through, and (4) threaded holes (Also 1/8" dia) on the underside for mounting the iris and condenser assembly.
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27602 MICROSCOPE STAGE |
Strong Stuff
Filament tape for closing boxes and envelopes that you want to stay closed. It has fiberglass strands embedded lengthwise in it which makes it very hard to tear by accident. You get 10 yds of the stuff, 3/4" wide, in a clear plastic desk type dispenser.
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91412 STRAP TAPE W/DISP. |
Fan Toggle
Standard household sized switches that move smoothly so you can control how much power is delivered. Intended for ceiling fans; these also work perfect with open-frame or light duty motors. Won't work with lights. Single pole, 5 amp, household current. Easy to install! Available in two colors.
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29379 FAN TOGGLE, WHITE |
Lab Stand
Affordable, adaptable lab equipment for serious scientists with laughable budgets. The basic stand is heavy black metal 8" long x 5" wide x 1" high with a 19-1/2" x 3/8" dia support rod screwed into it. Position a beaker or bunsen burner on the stand and build the configuration you need above it. Both of the Burette clamps and the ring attach to the rod with thumbscrew clamps. The Burette clamps have wing nuts so they can be adjusted to any angle. The single clamp extends 4" from the rod, with rounded, uncoated, adjustable metal jaws with spring tension and a wing nut. The double clamp like it has rubber-coated jaws. The 3" metal support ring holds the 6" x 6" heavy-gauge steel-mesh burner screen with crimped edges. Nice, solid equipment at a rare price.
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88192 3" RINGSUPPORT RING | |
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91831 6" X 6" SCREEN | |
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88597 DOUBLE CLAMP | |
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88195 LAB STAND | |
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88186 SINGLE CLAMP |
Positioner/Holder
A fine concept and pretty successful execution. Weighted bases hold fully adjustable clips and lenses for delicate hands–free work. The Helping Hand w/solder has a 2” high base connected to (2) alligator clips via (3) universal joints and a 4–1/2" sliding beam, and to a 2–1/2" dia roughly 3X magnifier via another universal joint on the sliding beam. It also adds a holder for your soldering iron, plus a hole and thumbscrew in the base to firmly position it. The larger Work Stand has a 3–1/2” x 4–3/4” stand with a 2–3/4” square x 3/8” deep reservoir to hold small parts, an L–shaped sliding beam with (2) alligator clips, and another L-shaped beam with a 3–1/2” lens, about 4X magnification. Joints adjust every which way. The set screws can all be hand–tightened, but we suggest a small pliers to secure the hefty 4X lens. Think of the clips as extra hands to hold wires, components, beads, what-have-you while you perform some operation on them with your own two hands.
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92280 HELPING HAND W/SOLDER | |
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91855 WORK STAND W/MAG. |
A Real Grabber
Okay, it isn't the cheapest magnet in the warehouse - but we dragged John's 165 lb filing cabinet around the dock with this 4-7/8" x 1" x 3/4" ceramic magnet, we're rating it conservatively at 100 lbs of pull, and we think it's a bargain. It has a 6" bracket with mounting holes on 5-1/2" centers, plus a 1/2" ID eyehook bolted into the center of it. It's all set to troll the bottom of the lake next time your filing cabinet falls overboard.
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91949 PICK-UP BAR MAGNET |
A Lot Of Pull
Pick up this 1-3/4" x 7/8" x 3/8" ceramic pick-up magnet while we still have it. It's in a heavy metal housing and has a stationary metal hoop, about 1/2" i.d., on top. The manufacturer tells us the magnet will grab up to 30 lbs of metal, and while Pat wouldn't bet on anything over 20 lbs, it's still very strong. Especially if you're going to dangle it on the end of a cord to gather spilled nails or to fish your keys out of the lake/pond/sewer/drain!
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91859 PICK-UP MAGNET |
Slide Show
Microscope glassware for examination of blood, pond water, mold, and other minutiae. All of the microscope slides are optically clear glass 26mm x 76mm (about 1" x 3"), between 1mm and 1.2mm thick. The well slides, of course, have a concave well to hold a drop of liquid. Our each is a package of (12) well slides, or a box of (72) standard slides with ground edges. Cover glasses are the smaller and very thin pieces of glass used as the top of the glass slide sandwich. They are often used temporarily by simply dropping them onto a drop of liquid to flatten and spread it and to minimize evaporation. More confident microscopists will cement them in place to permanently preserve a specimen. Our each is a package of (100) cover glasses 18 mm square, #1 thickness (0.13mm to 0.17mm). If you need one, you need both.
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89044 MICROSCOPE COVER GLASS | |
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89445 STANDARD MICROSCOPE SLIDES | |
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52261 WELL SLIDES |
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Elemental Information
Holy Gadolinium, Batman, who discovered this Gd element? We're not sure, but he's close to our hearts, since Gd is a magnetic metal of the rare-earth group, and you know how we love rare earth magnets. This excellent 38-1/2" x 26-3/4" poster of the Periodic Table lists the elemental information about Gd and 117 other elements, and includes mini-biographies of (7) scientists. The full-color poster is not laminated, but is a good quality coated paper, and a fascinating addition to any classroom.
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92005 TABLE OF ELEMENTS |
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