Combination Levers - Pennsylvania A3 Switcher, Part 57

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The Blondihacks Channel features projects and educational videos by Quinn Dunki, covering topics ranging from electronics, home-brew computing, machine shop work, welding/fabrication, 3D printing, and more. Many are companion videos to full project write-ups, which you can find at http://www.blondihacks.com Only some of my content is available to the public. Pledge over at https://www.patreon.com/QuinnDunki to access more videos, engineering drawings, 3-D models of projects, and more! Links in my video descriptions earn small commissions. As an Amazon Associate I earn from qualifying purchases.