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Tantalum Apertures for Wehnelt 19.99mm x 0.25mm
Replaceable apertures for the Wehnelt cylinder can be supplied to fit some microscopes.
Art.
no. A0111T to A0117T

Description

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.

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