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A shield greatly reduces deposits of evaporated metals on the electrodes and bell jar, yet allows clear observation of the amount on the specimen. Special features of each unit are:

• Two side arms which fit filament posts, each supporting a chrome-plated disc. 
• An annealed Pyrex tube which slides over the discs and is held securely in place by a coiled spring. 
• A precisely sized slot in the tube, which aligns accurately with a hole in the metal shield held in place beneath the slot, allowing controlled passage of evaporated metal to specimens. 
• Pyrex tube and metal shield can be rotated, permitting coating or shadowing from any angle. 
• Pyrex tubing will not crack from heat generated during evaporation. 

Complete instructions included with each unit.

The Replacement Tube is Annealed Pyrex. Extra tubes are helpful, since one can be in use while others are being cleaned. All edges are fire polished.

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3mm OD, 200 mesh grids. Package of 500. Learn More

Used chiefly in x-ray examination of specimen material to reduce background noise. 190 mesh. 25/vial. Learn More

Offers excellent support at perimeter with large, central open areas for unobstructed viewing. 200 mesh copper Learn More

Mesh pitch 125µ x 63µ. Available in Nickel and Copper Learn More

Holds metal boats securely while firing molybdenum apertures under vacuum for cleaning. Also used to hold boats containing powdery material being evaporated in vacuum. Consists of two sturdy insulated supports mounted firmly in heavy nickel-plated base. Boats left in this holder will last through many firings. Comes with package of Tungsten Boats Learn More

Made from top quality, 1 mil thick foil. Used to hold molybdenum apertures during firing in vacuum for cleaning. Overall Length, Flat bottom Length, Width, Depth Other metal boats available on request. Learn More

Used to hold powdery material during evaporation. Overall Length, Flat bottom Length, Width, Depth Other metal boats available on request. Learn More

Overall length 1 7/8" including electrode tabs. Flat bottom of boat is 7/16" long x 3/16" wide x 3/32" deep. Other metal boats available on request. Learn More