Since 1965, we have specialized in manufacturing cathodes, filaments, apertures and many other components for electron beam applications. In addition to our standard offerings for electron microscopy and e-beam welding, we also provide many original equipment manufacturers with specialty filaments for applications like vacuum deposition, ion implant, and x-ray, just to name a few.

If you have any difficulties placing your order online, please contact us directly at (800) 992-9037 or email