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Optical Glass Filters
Al Luebbers, our founder, collected glass. Not glass like you'd find on a knick-knack shelf, but optical glass. Lenses, prisms, reticles and filters, for example. Focus on the filters. Many of his filters came out of military surplus, and this is for-real stuff. We mean many are solid dyed optical glass, ground and polished to flatness standards that were probably excessive. Others are from the old days in photographic optics, and their standards were even tighter than your militaristic Uncle's. We've found that photographers, artists, and optical designers still have an occasional need for good glass filters, so we're making a list of some goodies. As always, don't be timid about calling for quotes on quantities. If we have 'em, we'll sell 'em. Just don't sell them back. Please!
| DIAM.or SIZE (mm) | CENTER THICK (mm) | |||
|---|---|---|---|---|
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3477 FILTER, AMBER | 26 | 1.5 | |
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3492 FILTER, AMBER | 30 | 2.3 | |
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3480 FILTER, NEUTRAL | 26 | 1.5 | |
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3490 FILTER, NEUTRAL | 30 | 2.3 | |
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3510 FILTER, NEUTRAL | 50x54 | 3.1 | |
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3512 FILTER, NEUTRAL | 67x70 | 4.1 | |
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3458 FILTER, RED | 6 | 1.4 | |
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3464 FILTER, TYPE A | 9 | 1.8 | |
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3470 FILTER, YELLOW | 18x18 | 1.6 |
Real Corks!!
We have obtained a large number of real natural corks, mostly surplus with a few fill-ins bought commercially. They range across the popular sizes used in science labs to seal vessels (drill your own holes for glass tubing, etc) and to use as floats. Or just use them to seal bottles that don't have closures or cry out for a decorative seal.
| Top Dia. | Bottom Dia. | ||||
|---|---|---|---|---|---|
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92688P25 CORK #0 | 3/8" | 9/32" | Details | |
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88746 CORK, #00 | 5/16" | 7/32" | Details | |
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92718 CORK, #1 | 7/16" | 5/16" | Details | |
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89230 CORK, #10 | 1" | 3/4" | Details | |
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89232 CORK, #16 | 1-3/8" | 1-1/16" | Details | |
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1711 CORK, #2 | 1/2" | 7/16 | Details | |
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89234 CORK, #20 | 1-5/8 | 1-5/16" | Details | |
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88748 CORK, #3 | 9/16" | 7/16" | Details | |
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23594 CORK, #5 | 11/16" | 9/16" | Details |
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 |
Teeny Tiny Tubes
Oodles of tiny clear glass tubes. Open on each end, they'll work wonders when connecting rubber tubing or sticking into stopper holes (#27918 is especially perfect for that). Flint glass, so nothing too hot, OK?
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27921 TINY TUBE, 5 X 150MM | |
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27915 TINY TUBE, 8 X 61MM |
Micro Bits
And we do mean micro. Sizes #61 to #80 (yes, that is twenty different bits) which are from 0.013 to 0.038 inches diameter!! The big boys sell a set of similar bits (carbon steel, like ours) for about $30.00!! Maybe theirs aren't from China.
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89087 MICRO BITS |
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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 |
Funnel? Piece of Cake
Two sizes of Bomex separatory funnels with ground glass stoppers and petcocks. The 100ml funnel is 9-1/2" long overall. The 500ml is 14-1/2" overall. An excellent price for basic lab glassware.
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91702 SEP. FUNNEL, 100ML | |
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91703 SEP. FUNNEL, 500ML |
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Nobel Starter Set
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Get your pre-Nobel prize-winning chemist started with this wooden organic molecule structure set. It includes a variety of balls in a variety of solid colors to represent different atomic elements such as carbon, nitrogen, hydrogen and the like. This set also includes one-inch and two-inch wooden connectors and two-inch helical springs. Full instructions included for building 3-D models.
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89274 KIT MOLECULAR, WOODEN |
Chinese Rifflers
Riffler files are most prized by sculptors, wood carvers, model makers and similar fashioners of precision objects. They come in a variety of flat, round and triangular shapes. They are usually pointed and always have a delicate curve toward the point which makes them particularly useful for working in tight and curvy spots. We have a set of (10) in an attractive red plastic case. They are 3 x 180 mm size (about 7"), and were made in China for the King Manufacturing Co. Very nice quality at a very nice price. They can cost as much as $4.00-$5.00 apiece in regular outlets.
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10955 RIFFLER FILES |
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Diamond Cutoff Wheels
Set of (5) diamond cutoff wheels and a mandrel. The wheels are 13/16" dia, the mandrel 1/8" dia x 1-3/4" long. Made in China, and a great buy. Just the item to complete your Dremel" type tool kit.
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89313 DIAMOND CUTOFF WHEELS |
Diamond Files
A set of (5) needle files, 5-1/2" long, which are coated with industrial diamonds. Perfect for sharpening tools, or doing filing on hard metals etc. when you are sculpting or welding. The shapes are the usual assortment of flat, round and in between shapes.
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89397 DIAMOND FILES |
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