Ealing Trirail Optical Rail Lab Experiments - Mirrors Protractor Lens Holder

US $600

  • Northborough, Massachusetts, United States
  • Nov 11th
Physics optical lab experiment parts, used, in good condition with signs of relatively heavy use in a college environment. I'm not sure who this was made by - based on the vintage, style, and quality I would guess early 1980's Ealing, but I can't find anything online that looks similar. There are no manufacturer's names, logos, or other identifiers on any of the pieces. Most of these have moderate to heavy wear; the rails have some of the anodized finish worn off and have dings and scratches, the mirrors have chips around the edges (and there's one that's missing), there is a little corrosion on the protractor, etc.   Sold with an unconditional 30-day guarantee - if you're not satisfied for any reason, send it back, and I'll send a full refund including shipping both ways. Includes: Two 250mm sections of Tri-Rail extruded aluminum rail.  The rail measures 70mm across at the base and is 65mm high. On rail carriers:  a mirror, roughly 4" x 2.5", the angle is adjustable using the thumbscrew on the back a half-silvered mirror on a 45 degree mount a coated lens on a micro-adjustable mount (Lens is loose, in baggie) a 360 degree protractor a block intended to hold two half-silvered mirrors, missing one.

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