
A nice pulley 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 this block with (1) sheave 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.
![]() |
91186 SINGLE SHEAVE PULLEY |
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
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.
![]() |
89339 ELECTROMAGNET KIT | |
![]() |
89714 MAGNET LEVITATION KIT | |
![]() |
89338 MOTOR/GENERATOR KIT |
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.
![]() |
36227 MAGNET WIRE, 16 GA | |
![]() |
36228 MAGNET WIRE, 20 GA | |
![]() |
36229 MAGNET WIRE, 24 GA |
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!
![]() |
29233 LED DISPLAYS, SM |
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.
![]() |
31801 PRISM, 2" | |
![]() |
31798 PRISM, 4" | |
![]() |
31799 PRISM, 6" |
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 $12.00 range, but perfectly serviceable for most applications. And at a third the price.
![]() |
10900 NEEDLE FILES |
$3.95
EACH
Out of Stock. Check Back Soon! |
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 | ||||
|---|---|---|---|---|---|
![]() |
38864 LINE CORD, 10", 120VAC, 3-PRONG | 16 | 3 | Details | |
![]() |
41277 LINE CORD, 11FT, 120VAC 3-PRONG | 18 | 3 | Details |
$2.75
EACH
Out of Stock. Check Back Soon! |
![]() |
41278 LINE CORD, 11FT, 120VAC 3-PRONG | 18 | 3 | Details |
$2.75
EACH
Out of Stock. Check Back Soon! |
![]() |
35222 LINE CORD, 9' EUROPEAN 220VAC, 3-PRONG | 14 | 3 | Details |
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 | |||
|---|---|---|---|---|
![]() |
41396 ADAPTER, 12VDC/1.2A | 5.5mm Female | Pos Center 6' Cord | |
![]() |
38789 ADAPTER, 12VDC/100MA | No Plug | (2) Screw Terminals | |
![]() |
40812 ADAPTER, 12VDC/2A | 5.5mm Female | Low Profile. Switching Type. 6ft Cord | |
![]() |
40943 ADAPTER, 12VDC/500MA | 1/8" Mini Plug Pos. Tip | 6' Cord | |
![]() |
40924 ADAPTER, 12VDC/800MA | Ring Terminals | 6' Cord | |
![]() |
41392 ADAPTER, 13.5VDC/1A | No Plug | 5' Cord | |
![]() |
27671 ADAPTER, 18VAC/100mA | None | ||
![]() |
40566 ADAPTER, 33VAC/320MA | 5.5mm Female | 6ft Cord | |
![]() |
21836 ADAPTER, 4VDC/200mA | 2 Prong Female | mislabeled 1.2v | |
![]() |
30670 ADAPTER, 5.5VDC/1.5A | None | None | |
![]() |
30844 ADAPTER, 5VDC/160mA | 3/32" Male Pos Tip | 2.5mm | |
![]() |
6463 ADAPTER, 6.5VAC/350mA | 5mm | Female | |
![]() |
35650 ADAPTER, 6VDC/1A | 5.5mm Female Pos Tip | 6" Cord | |
![]() |
31660 ADAPTER, 6VDC/300MA | 5.5mm | Female, 6ft Cord, Pos. Tip | |
![]() |
35289 ADAPTER, 6VDC/800mA | 5.5mm Pos Tip | 6ft Cord | |
![]() |
40492 ADAPTER, 7 VDC/500MA | 3.5mm Female | Positive Center | |
![]() |
38963 ADAPTER, 7.5 VDC/400MA | 5.5mm Female | 6' Cord | |
![]() |
36512 ADAPTER, 7.5VDC/500MA | 3.5mm Female | Positive Tip | |
![]() |
21676 ADAPTER, 7.9VDC/50mA | 3.5mm | Male Pos Tip | |
![]() |
30838 ADAPTER, 7VAC/1A | Screw Posts | Cord w/Lugs & Spade Conn. | |
![]() |
35654 ADAPTER, 9VDC/1A | None | 12" Cord | |
![]() |
41295 ADAPTER, 9VDC/600MA | 5.5mm Female R.A. | 6' Cord Pos Tip |
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 | ||||
|---|---|---|---|---|---|
![]() |
40108 NARROW MOUTH 10ML CLEAR | 22mm | 52mm | Details | |
![]() |
4735 NARROW MOUTH 5ML AMBER | 23mm | 37mm | Details | |
![]() |
31492 NARROW MOUTH 5ML AMBER | 21mm | 39mm | Details | |
![]() |
31495 NARROW MOUTH 5ML AMBER | 21mm | 38mm | Details | |
![]() |
40107 NARROW MOUTH 8ML CLEAR | 24mm | 40mm | Details | |
![]() |
40815 SLOPED SHOULDER 100ML CLEAR | 52mm | 95mm | Details | |
![]() |
40814 SLOPED SHOULDER 25ML CLEAR | 32mm | 57mm | Details |
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.
![]() |
20025 CLAW PICK-UP TOOL |
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. 29180 is 1/2" O.D. x 1/4" I.D x 3/16"thick.
![]() |
29122 FERRITE CORE, 1" | |
![]() |
29180 FERRITE CORE, 1/2" |
Click a phrase to shop for products associated with that phrase (AKA "Tag"). More popular tags appear bigger. Learn more »