engineering

You Need This – Vintage Brown and Sharpe 12-Piece Micrometer Set 

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Because one accurate measurement is worth more than a dozen expert opinions.  We love Brown and Sharpe Micrometers. They are the kind of toolset that defines the word precision. As luck would have it, we have an exceptional set for sale in our e-commerce store. This collection is not just functional—it’s a piece of engineering … Read more

A Leeds & Northrup Model 7556 Guarded Potentiometer from Obtainium Science and Surplus, shown from the front. The vintage gray metal device has multiple black control knobs, labeled dials, and a power cord resting on a textured metal surface.

Measure Voltage Like It’s 1965

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The Timeless Appeal of the Leeds & Northrup Model 7556 Guarded Potentiometer At Obtainium Science and Surplus, we’re passionate about preserving the legacy of scientific innovation. That’s why we’re excited to showcase one of our most iconic pieces: the Leeds & Northrup Model 7556 Guarded Potentiometer. This vintage precision instrument isn’t just a relic of the past—it’s … Read more