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American Science & Surplus offers science kits, educational toys, school supplies, arts and crafts items, hobby tools, scales, lab glass, housewares, electronics and much more all at discount closeout prices.

I bought quite a bit of components from Digikey. Think they are geared towards manufacturers (can get stuff in quantities of 1000) but individual sales can happen.

• Fluke Reliability extended warranty: Gain peace of mind, convenience, device accuracy, and savings on service costs via 2 – 5 year mfg. warranty, 3 free calibrations, and 15% discount on repairs.

Jun 8, 2023 — A diffraction grating is essentially an aluminum-coated mirror with thousands of parallel, equally spaced grooves etched into its surface.

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As far as I know the Barrington location was their only location and only consumer store. I haven’t been there in years. Used to be, you’d walk in and it’s a nice shiny store, perhaps expensive looking when you consider the display cases. In a corner off to the left was the Mad Scientist’s room which had some special items in it. I remember a piece of lab glassware the size of a small refrigerator. Then, toward the left rear of the main showroom was the surplus area, with loose items in big plywood bins. There’s a picture of that in the Wikipedia article.

Please ensure the touch device is charged or has at least 50% battery capacity.Unzip file to empty PRUFTECHNIK USB memory stick. Firmware is stored in "touch" folder.Switch on the touch device. Wait for Home screen to appear.Connect USB memory stick to the touch device USB port. New firmware copied from USB memory stick to the touch device.After approximately 1 minute on-screen message box appears stating new upgrade firmware found. Tap green tick button to start upgrade. Remove USB memory stick from the touch device.The touch device restarts and firmware upgrade begins.After completion of firmware upgrade the touch device restarts and finishes in Home screen.

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Edmund Scientific Corporation, based in Barrington, New Jersey, was founded in 1942 as a retailer of surplus optical parts like lenses. It later branched out into complete systems like telescopes and microscopes, and in the 1960s, a wide variety of science toys and kits. Through the 1970s and 80s they were best known for their mail order sales and associated catalogs, although they also maintained a retail presence at their factory store. In 1984, the company split into Edmund Scientific and Edm...

• Simultaneous coupling alignment: Enables real-time adjustments on up to six couplings simultaneously, enhancing efficiency and accuracy during complex alignments.

I have their 1998 Annual Science Reference Catalog for Educators (Telescopes/Microscopes/Optics/Biology/Physics/Motors/Magnets)

• Advanced software & cloud connectivity: Comes with full suite of software options, including cloud data transfer and comprehensive analysis tools, allowing for detailed monitoring and alignment trend analysis.

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NEW: The Fluke Reliability Extended Warranty Program now covers the ROTALIGN Touch and offers you peace of mind, convenience, device accuracy, and savings on service costs via:

Three free calibrations:Calibrations for extended warranty customers are prioritized!No risk of calibration price increase (the price of your 3 calibrations are locked in with purchase of the extended warranty)

The ROTALIGN touch with its larger detector, move simulator and ease of use has made the alignments in the Test Cell that much easier. Given the use of turn buckles on the inboard end of the engine for adjustment, the ability in the ROTALIGN touch to show both vertical and horizontal adjustments live at the same time is essential.

• Advanced diagnostics: Equipped with features like soft foot detection and correction, RotAlign helps identify and rectify common alignment issues, ensuring machinery operates at optimal efficiency.

I did get some jumping discs from them, and a little pocket telescope. But I read those catalogs cover to cover, over and over again.

Me, too, though I never attempted to grind my own mirror. When I was a kid I bought a ready-made mirror from them. That, and the 45-degree reflecting prism were the only things I bought. Everything else was homemade, or scavenged from something else. It was a real low-budget effort. But it worked, and I actually saw the rings of Saturn with it. I think I was maybe 12 or so.

Oh, I loved the Edmund Scientific catalog. I couldn’t afford almost anything in it, but it set my Jr. Mad Scientist blood racing. He-Ne lasers! Large telescopes!

Absolutely remember these catalogs! I used to buy from them and visit their showroom. I still have various optical and non-optical things I bought from the showroom, the one in the back that was surplus, as well as the nicer showroom in front that was not surplus and was more expensive. They originally started as Edmund Salvage and now have evolved into industrial optics and I still buy from them, but more like I buy from Thorlabs et cetera.

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Via the PRUFTECHNIK ROTALIGN touch Voice App you can easily control the ROTALIGN touch laser-shaft- and machine-alignment system due to voice-control connected with your mobile phone or tablet-pc based on a Bluetooth connection. Thus you can fully concentrate on measuring and dictate the machine dimension directly into the device without even touching it. Measuring modes can be switched by voice control, too. The PRUFTECHNIK ROTALIGN Voice App amends the shaft alignment process and makes it more effective. You save time, your hands are free for the alignment process and in the end, you receive a precise, reliable, and repeatable alignment result.

• Multi-coupling live trend: Allows for the monitoring of alignment changes over time across multiple couplings, providing valuable insights into machine behavior.

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RotAlign Touch delivers unrivaled precision and easy-of-use with cutting edge technology from the old pros in laser alignment, Prüftechnik.

Optional lens for a narrower field of view for advanced Axis onboard cameras.

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202081 — This mechanism was used to deposit greyscale patterns of fluorescently-labeled proteins, and the fluorescent intensity of these patterns was measured.

Axicons are conical lenses used to generate Bessel beams, ring beams and conical non-diverging beams. Find and compare Axicons at ...

• Adaptive alignment: Integrates Active Situational Intelligence to automatically adjust to various alignment challenges, ensuring optimal performance.

Jun 16, 2023 — The CS mount has a smaller back focal distance than the C mount, allowing for more space between the lens and the image sensor. This extra space ...

Adaptive Alignment capabilitiesSingle-laser technology sensALIGN 7 featuring intelliSWEEP, intelliPOINT, and intelliPASSActive Situational Intelligence immediately adjusts to specific alignment challenges in real timeMulti-coupling shaft measurement and simultaneous Live Move for up to six couplingsIn-situ Cardan shaft alignmentVertical machine alignment with vertiSWEEP continuous measurement modeMonitor thermal growth and pipe strain with Live Trend and Multi-coupling Live TrendSoft foot diagnosisHorizontal and vertical Move SimulatorAlignment Reliability Center 4.0 with cloud data transfer*Mobile connectivity with integrated Wi-Fi, Bluetooth, RFID, and camera** optional features.

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Benefit from adaptive features inherent to the sensALIGN 7 laser sensor heads and Active Situational Intelligence: intelliSWEEP, Live Move, vertiSWEEP, Live Trend and much more

Anyone remember those from the mid-1970s? Sadly the company has turned into all optics (lenses and the like), but when I ordered from them regularly, they had quite the variety of stuff. I got my very first computer (an assemble-it-yourself job called JR-01) and this great thing for weather forecasting (had a specialized circular sliderule to generate codes for the forecast and a codebook to explain the codes), and quite a number of other geeky items. The reason I bring it up now is I’d like to get that weather forecaster, and maybe just reminisce while thumbing through the catalog online.

I started grinding my own mirror, but that didn’t seem to be making any impact on the glass after running out of compound, so I went and bought a completed mirror.

I’ve no idea who made the thing. It was not even remotely close to the Tandy COCO 1~3 I got later on in life. For the JR-01, the programming and input were literally rewiring the machine, while the output was a single array of lights giving a binary number. I loved it!

ROTALIGN touch is designed to withstand even most rugged industrial environments: waterproof according to IP65, shock-proof, oil, dirt, and scratch-resistant

• Measurement modes: The system offers various measurement modes, including single-point, multi-point, and continuous sweep, to accommodate different alignment scenarios.

• Integrated camera: RotAlign includes an integrated camera for documenting alignment conditions and surrounding area, useful for reporting and alignment verification.

• In-situ cardan shaft alignment: Offers specialized features for cardan shaft alignment without the need for disassembly, saving time and reducing effort.

I remember some of the computer stuff and some very early Edmund computer articles. But, most of the Edmund remnants in my garage are optics - sheets of polarizing material, lenses, frosted glass. Was the computer a Sinclair?

Agiltron Fiber Mirror Reflector is designed to reflect light input backward through the fiber. It can be used to create a fiber interferometer or to build ...

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Another catalog like that was Heathkit. Couldn’t afford any of their kits, but I drooled over the computers, the HERO robot, and the HAM radio gear.

• Thermal growth monitoring: Includes capabilities to monitor and analyze thermal growth and pipe strain, allowing for more informed maintenance decisions.

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• User-friendly: Features an intuitive touchscreen interface with guided procedures, making complex alignment tasks more accessible to users of different skill levels (WiFi & Bluetooth connected)

• Complete system: A single tool for standard alignments, advanced applications, and software analysis that provides maximum return on investment (ROI) for users

Whether it is a Cardan shaft, a vertical pump, or a turbomachine train, ROTALIGN touch will not let you down. All the best intelligent features are included: vertiSWEEP, Cardan Shaft, Live Trend, Live Move, Multicoupling Measure, Move, and Live Trend.

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ANSI tolerances available for Short flex and Spacer coupling typesResolution available in both 2DP and 3DP (Metric) Report print previewReport new section: Measurement equipment serial number and due calibration dateTolerance screen accessible directly from Results viewContext sensitive help ‘?’ button directly accessible within main workflow screens"Add feet" button available in stationary machine properties

• Intelligent reporting: Offers detailed report generation capabilities, providing clear and concise documentation of alignment processes, results, and recommendations for maintenance actions.

Showroom?! I never knew they had showrooms. I got hooked on the non-optical stuff while I was in high school in the Washington, DC area. The only optical thing I liked from them was the cool telescope that, IIRC, was the result of a design contest.

At our work site we use the ROTALIGN touch laser instrument as a high-end system for shaft pump alignment. The system delivers the best measurement accuracy while offering the most innovative features that save you much time and effort.

NGSS. Review star icon (1 review). Read Reviews | Write a Review. Fresnel Lens (10 in. x 7 ...

• Robust hardware: Designed with IP65 industrial-grade materials, making it suitable for harsh working environments and ensuring durability and longevity.

They had a showroom in New Jersey. I went there once to pick up a piece of plano-parallel glass. I think optics was it’s original business but they branched out with all the other gizmos and gadgets. I had a couple of those things, and wanted much more.

After approximately 1 minute on-screen message box appears stating new upgrade firmware found. Tap green tick button to start upgrade. Remove USB memory stick from the touch device.

Ahhh, the DIY days of my childhood. Order stuff from the Edmunds catalog to supplement your Heathkit 10-in-1 Electronics Kit… while you made fireworks (with chemicals from the Caseco Pyrotechnics catalog), wearing the down vest that your mom sewed from a Frostline kit for you!

Optical Lenses - 20-10 scratch-dig · Parametric Filters: · Focal Length (mm) · Center Thickness (mm) · Edge Thickness(ET) (mm) · Diameter (mm) · Radius (mm) ...

• Vertical machine alignment: Features vertiSWEEP continuous measurement mode, specifically designed for precise vertical shaft alignment tasks.

The sensALIGN Series technology is based on the inherent PRUFTECHNIK single-laser technology providing highly precise measurement results and easiest mounting and measuring in the field. sensALIGN 7 sensors include two HD large position-sensitive detectors (PSD) and MEMS inclinometers. Combined with the detector extension capability (InfiniRange), it is always possible to measure and document the initial alignment condition; no matter how big is the misalignment. Furthermore, this technology allows the simultaneous monitoring of the machine corrections in vertical and horizontal directions, starting from any angular position where the sensor comes to stop.

Apparently, the non-lens based part of Edmunds can be found here: Educational Science Toys, Kits & Equipment Online - ScientificsOnline.com

PRUFTECHNIK’s laser alignment kits have helped Mun Siong Engineering to successfully complete over 100 installations, after sales services and workshop overhauls within a year.

• Live Move: RotAlign offers Live Move functionality in both vertical and horizontal planes, enabling real-time adjustments and immediate feedback during the alignment process.

Not really the same, but American Science Surplus is a fun site with lots of interesting and oddball stuff. https://www.sciplus.com/

Magnification. The amount of a scene that will fit into the image area of a particular size film depends on the focal length of the lens being used. An image ...

With sensALIGN 7, the door to the toughest alignment applications opens wide. Intelligent alignment features make it possible to approach complex alignments with serenity: intelliSWEEP filters out any poor measurement data due to difficult measuring conditions.