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A Pyramid of Prisms
Polished glass equilateral prisms. Equilateral because each edge of the end is the same length, 32mm. Thus, as all you geometry students know, each of the angles is also the same, 60 degrees. These are school grade and are fine for decorative and demonstration. They do a nice job of diffracting light to produce a nice rainbow-like spectrum, but are definitely not up to instrumentation standards. The missing dimension, length, is shown below.
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31801 PRISM, 2" | |
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31798 PRISM, 4" | |
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31799 PRISM, 6" |
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; 5-5/8" x 6-3/8" x 1-1/4", black it's 6VDC, 500mA, with a 3.5mm plug. They take the standard 12VDC input.
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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 |
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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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38864 LINE CORD, 10" | 16 | 3 | Details | |
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20619 LINE CORD, 18' | 18 | 3 | Details | |
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35222 LINE CORD, 9' EUROPEAN | 14 | 3 | Details |
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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=Ampere) (VDC= Volts DC) (VAC= Volts AC).
| Plug | Comments | |||
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39104 ADAPTER, 12VDC/1.5A | 5.5mm Female | Center Positive r/a plug, 12' Cord | |
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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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38690 ADAPTER, 3.0VDC/400MA | 5.5mm Female | 6' Cord | |
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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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30844 ADAPTER, 5VDC/160mA | 3/32" Male Pos Tip | 2.5mm | |
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11850 ADAPTER, 5VDC/1A | 5.5mm Female | Pos. Ctr. | |
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39638 ADAPTER, 5VDC/500MA | USB Mini-A | 4' Leads | |
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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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39105 ADAPTER, 6VDC/2A | 5.5mm Female Unmarked | Cnter Positive Plug, 6' Cord | |
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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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38963 ADAPTER, 7.5 VDC/400MA | 5.5mm Female | 6' Cord | |
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36512 ADAPTER, 7.5VDC/500MA | 3.5mm Female | Positive Tip | |
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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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39102 ADAPTER, 9VAC/1A | 5mm Female | 6' Cord | |
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35654 ADAPTER, 9VDC/1A | None | 12" Leads | |
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35541 ADAPTER, 9VDC/800mA | 4mm Female R/A plug | Neg Tip |
BOTTLEMANIA
Zillions of little bottles. Renegades from a pharmaceutical company, leftover unfilled from runs of exotic we-know-not-what. We have divided them into three basic shapes: A, Narrow Mouth, h (Narr Mo) have a 10mm dia. x 4mm long neck on top of a squarish shoulder, a 13mm dia. 3mm rim and a 7mm dia. opening; B, Wide Mouth, (Wide Mo) have a 16mm dia. x 4mm long neck on top of a squarish shoulder, a 19mm dia. x 3mm rim and a 12 or 13mm dia opening; C, Sloped Shoulder, (Sl Sh) have roughly 5-6mm long neck that tapers from the soft shoulder to 15mm dia, with a 19mm dia x 3mm rim and a 12-13mm dia. opening. Height refers to height overall, and dia. to the body dia. in the table below. Great items for the doll house (for kids old enough not to swallow them), to hold tiny wild flowers, for decorative art work, individual cruets, or just to hold and marvel at. All quite sturdy glass. In the real world, you would pay from $75 (smallest) to $225 (biggest) for 288 of these, which is the smallest quantity you could get!! Narrow mouth bottles take a #00 cork. (Our part number 88746) Wide mouth and sloped shoulder bottles take a #3 cork. (Our item number 88748)
| Dia. | Height | ||||
|---|---|---|---|---|---|
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26712 NARR MO 2ML CLEAR | 15mm | 32mm | Details | |
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4735 NARR MO 5ML AMBER | 23mm | 37mm | Details | |
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31492 NARR MO 5ML AMBER | 21mm | 39mm | Details | |
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31495 NARR MO 5ML AMBER | 21mm | 38mm | Details | |
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37112 SLOPE SH 20ML AMBER | 26mm | 56mm | Details | |
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39163 WIDE MO 5ML CLEAR | 22mm | 40mm | Details |
Picker Uppers
A device for retrieving things from drains, behind cabinets and other places that hands won't go. A (4) fingered grasping claw at the end of a 24" shaft. The shaft is a flexible spring and has a plastic handle.
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20025 CLAW PICK-UP TOOL |
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Ferrite Cores
Great for chokes, toroids, RFI suppression and much more. Our ferrite cores are attracted to magnets, but are not magnetic themselves. Edges are slightly beveled. 29122 is 1" O.D. x 5/8" I.D. x 1/4" thick. 35235 is 3/4" O.D. x 7/16" I.D. x 1–1/8" thick. 29180 is 1/2" O.D. x 1/4" I.D x 3/16"thick.
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29122 FERRITE CORE, 1" | |
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29180 FERRITE CORE, 1/2" | |
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35235 FERRITE CORE, 3/4" |
Basic Phoning
Just a basic common phone line. 25 feet long, flat, 4-wire, ivory casing. Nothing at the ends: you attach the modular plugs, spade plugs, or incorporate it into your imaginative electrical contraptions. We'll keep the price basic, too.
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29374 PLAIN PHONE CORD |
Sleeping Pad
Campers put these pads under their sleeping bags to insulate themselves thermally and ergonomically from the hard cruel ground. They call them "Insulite" which sounds like a brand name and they are military grade. We don't know if the items we have are seconds from that company or somewhere else, but we can't tell the difference. They are at least 20" x 60" and are 3/8" thick dense foam rubber. We have light blue, dark blue khaki/green and mauve/purple, from which we shall pick your purchase. One side is glossy with more closed pores than the other. We have used them, and they are great! Feather light too at only 20 oz. Good as light duty tumbling or exercise mats as well.
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24668 SLEEPING PAD |
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