Additional information
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Made from 0.004″ tantalum foil. Replaceable tantalum apertures for some microscopes (Amray and Philips). They improve the performance of the electron gun.
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D49020-Ta | Wehnelt Aperture, 200µm Hole | each | |||
D49030-Ta | Wehnelt Aperture, 300µm Hole | each | |||
D49040-Ta | Wehnelt Aperture, 400µm Hole | each | |||
D49050-Ta | Wehnelt Aperture, 500µm Hole | each | |||
D49075-Ta | Wehnelt Aperture, 750µm Hole | each | |||
D49100-Ta | Wehnelt Aperture, 1000µm Hole | each |
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