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Pull, Pull, Pull Your Boat
A couple of pulleys just ready to be combined into the block and tackle you need for tiny jobs, like trimming your bonsai trees or hauling your model boat out of the pond. Get blocks with (1) or (2) sheaves and rig up whatever you need. Each block has an aluminum frame about 3–1/2” long with “S” hooks on each end. The sheaves, or wheels are about 2” dia x 1/4” wide, with a “V” groove that looks perfect to handle 1/8” or smaller Venetian blind cord. These dudes are perfect for demonstrating mechanical advantage in the physics lab!! But not for heavy lifting.
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91186 SINGLE SHEAVE PULLEY | |
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91187 TWO SHEAVE PULLEY |
Cotter Pins
Slide them through a slot, then flare the ends to hold them there. We have (1) size of metal cotter pins, for all your project needs. Small are 1–1/4” long x 1/4” wide, with a 1/8” wide eye.
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29468 COTTER PIN, SM |
Electric Motor and Magnet Kits
A trio of the best science education kits we have seen dealing with electricity, magnetism, motors and generators. The 44 page instruction booklets are educational and complete; state problem, approach and explain what is happening for a series of projects of graded difficulty. The Motor/Generator kit includes several introductory experiments on magnetism as well as six complete motor generator projects. The Electromagnet kit provides experiments including the building of an electromagnet, a doorbell chime, a telegraph, a relay and an electric catapult. The Levitation Set experiments with magnetic fields, gravity, and equilibrium; plus everything you need to build a magnetic levitation train! All are complete except for batteries. Strongly recommended for their quality, the accuracy of their science and the interest they will sustain. Ages 10-18.
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89339 ELECTROMAGNET KIT | |
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89714 MAGNET LEVITATION KIT | |
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89338 MOTOR/GENERATOR KIT |
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 |
$10.95
(100 FT)
Out of Stock. Check Back Soon! |
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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 | |
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36009 MAGNET WIRE, 27 GA | |
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31276 MAGNET WIRE, 30 GA |
LED Displays
A big grab bag of LED display tiles. Assorted colors - red, green, amber - and displays. Small are 1" x 2" and smaller; 3-9 volts; and include seven-segment numeric, dot matrix, and alphanumeric. Sorry, we can't tell you what size or display you'll get, but Small has at least (4) different. Think of it as a surprise present from Uncle Barry. Hook 'em up and find out what he gave you!
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29233 LED DISPLAYS, SM |
Fiber Optics
The wave of the future. Create your own ISP or long-distance phone company. The plastic fiber-optic cables are clear, 1/32" dia single strand. Unjacketed is IFC-U1000, 1000nM. Jacketed cables are encased by black plastic, 1/16" OD, IFC-E1000, 1000nM. What do modelers do with it? A recent magazine on model railroading showed how to build a lighted marquee using fiber optics. Pretty neat!! The big boys get $1.60 to $1.90/per foot for this stuff!! All fiber optics sold in 10-ft lengths. Extremely neat!!
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91069 FIBER OPTIC, JACKETED | |
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91068 FIBER OPTIC, UNJACKETED |
Needle File Set
Miniature 5–1/2" steel needle files. They come in the usual assortment of flat, wedge, triangular, and round shapes, (10) in all. They seem to be pretty uniformly fine with none that we would call coarse. Made in China, they come in a vinyl carrying case that snaps shut. Not as classy as some of the sets we have seen in the $18.00 range, but perfectly serviceable for most applications. And at a third the price.
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10900 NEEDLE FILES |
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Mobile Music
Make your portable CD player really portable: take it for a ride with these skip stabilizers. The plastic housing is full of springs that should eliminate skips on all but the worst roads. Plus, each has an adapter that connects your car's cigarette lighter with your CD player. (To hear the music, though, you'll have to order-from us, naturally-a pair of speakers for the player's headphone jacks.) The DC-DC converter by itself would be a steal at this price. Use it for your CDs, or for any small DC appliance: tape deck or perhaps a portable espresso machine? Made by Koss; (2) different ones: 5-5/8" x 6-3/8" x 1-1/4", black. #27640's output is 9VDC at 500 mA; the output plug is 5mm. #27642 is 6VDC, 500mA, with a 3.5mm plug. All (3) take the standard 12VDC input.
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27642 CD STABILIZER, 6V | |
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27640 CD STABILIZER, 9V |
Swinging Balls
The classic swinging balls, to amuse you on slow days in the office or physics lab, and to demonstrate Newton's Third Law. Drop one of the five hanging balls, one flies out from the other end; drop two and two fly out; drop three and it's amazing. The balls are set in a 7" x 9" x 9" high wooden frame. Isaac didn't invent these mesmerizing toys, by the way. That took Simon Prebble (whom some of you may remember as the evil Martin Chedwyn on "As the World Turns") who had an energy transference inspiration in 1967. (Where else can one learn these things?)
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33739 WOOD FRAME BALLS |
Line Cords
Super handy things to have around your workshop. These line cords are all made up with molded plugs on one end to give your projects that professional finished appearance. Great for repairs...and to replace an existing cord with one that is the proper length for the new location. New, (except as noted) and first quality.
| Gauge | No of Wires | ||||
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20619 LINE CORD, 18' | 18 | 3 | Details | |
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26132 LINE CORD, 6' | 18 | 3 | Details | |
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35222 LINE CORD, 9' EUROPEAN | 14 | 3 | Details |
Adapting to AC-Surplus Transformations
There is an entire class of transformers that surplus dealers call "AC Adapters." What we really mean is transformers that plug directly into the wall (primary voltage 110 VAC), and via a cord and/or plug provide various levels of output current at variou s voltages. It is a rare buyer of surplus that gets the plug configuration he/she wants, and many get snipped off (plugs that is). They are handy power supplies, battery charging units, substitutes for batteries in toys and games, or for providing safe il lumination to models and displays. Be sure to note whether the output is AC or DC (Direct Current, like a battery) and whether it can provide enough current for your application. Unless otherwise noted, all are suitable for indoor use only. Stick with us and you'll get the hang of adapting to AC...and at much lower prices than your friendly appliance/game/computer/calculator shop asks. Unless otherwise noted, all adapters are for 115 volt AC primaries, and all have about 6 ft. cords. (MA=Milliamp) (A=Amphere) (VDC= Volts DC) (VAC= Volts AC)t
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38789 ADAPTER, 12VDC/100MA | No Plug | (2) Screw Terminals | |
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22752 ADAPTER, 15VDC/200mA | 5mm Female | IBM #2682950 for PC convert | |
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27671 ADAPTER, 18VAC/100mA | None | ||
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35651 ADAPTER, 24VAC/1.5A | Screw Terminals | No Leads | |
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21836 ADAPTER, 4VDC/200mA | 2 Prong Female | mislabeled 1.2v | |
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30670 ADAPTER, 5.5VDC/1.5A | None | None | |
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30843 ADAPTER, 5VDC/100mA | 3/32" Male Pos Tip | 2.5mm | |
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30844 ADAPTER, 5VDC/160mA | 3/32" Male Pos Tip | 2.5mm | |
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6463 ADAPTER, 6.5VAC/350mA | 5mm | Female | |
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36999 ADAPTER, 6VDC/100MA | 5.5mm Female | Pos. Tip | |
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35650 ADAPTER, 6VDC/1A | 5.5mm Female Pos Tip | 6" Leads | |
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31660 ADAPTER, 6VDC/300MA | 5.5mm | Female, 6ft Cord, Pos. Tip | |
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35289 ADAPTER, 6VDC/800mA | 5.5mm Pos Tip | 6ft Cord | |
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36512 ADAPTER, 7.5VDC/500MA | 3.5mm Female | Positive Tip | |
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32681 ADAPTER, 7.5VDC/600mA | 5mm | Female Plug End | |
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21676 ADAPTER, 7.9VDC/50mA | 3.5mm | Male Pos Tip | |
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30838 ADAPTER, 7VAC/1A | Screw Posts | Cord w/ Lugs & Spade Conn. | |
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35654 ADAPTER, 9VDC/1A | None | 12" Leads | |
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36374 ADAPTER, 9VDC/1A | 5mm | Female | |
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35541 ADAPTER, 9VDC/800mA | 4mm Female R/A plug | Neg Tip |
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