Wehnelt Apertures
Replaceable apertures for the Wehnelt cylinder can be supplied to fit some microscopes.
Special prices valid while stocks last.
Replaceable apertures for the Wehnelt cylinder can be supplied to fit some microscopes.
Special prices valid while stocks last.
Replaceable apertures for the Wehnelt cylinder can be supplied to fit some microscopes. A hole size smaller than normal gives improved characteristics for most electron guns. Used in Philips/FEI, Leitz and Amray. Aperture diameter 10mm.