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--- ebeam_filament [2025/07/23 17:10] – ethanminot
+++ ebeam_filament [2025/07/23 17:11] (current) – ethanminot
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 |Introduction              |We have a Varian e-Gun 980-0003, powered by the e-Gun Control Unit Model 922-0020. Read the manuals FIRST before working on the instrument; {{::ebeam:e-Gun Evaporation Source Manual.pdf|here is the e-Gun manual}}, and {{::ebeam:e-Gun Source Control Unit Manual.pdf|here is the Control Unit manual}}. They are short and informative. However the information about changing the filament (in the e-Gun Manual) is a little confusing, and we ended up successfully completing this task using our own method. This guide will explain the steps for how we changed the filament. You'll need several small Allen keys, some flathead screwdrivers, and 0.01" and 0.04" feeler gauges.|
-|{{ebeam:ebeam1.jpg?2000|}}|Here's what you see when looking at the e-gun and crucible holder from the front. The filament is around the back (you'll need to remove both sheet metal walls from the chamber to reach it).|
+|{{ebeam:ebeam1.jpg?500|}}|Here's what you see when looking at the e-gun and crucible holder from the front. The filament is around the back (you'll need to remove both sheet metal walls from the chamber to reach it).|
 |{{ebeam:ebeam8_2.jpg?500|}}|Here's behind the crucible holders. The filament is the curly piece of metal. Each leg is secured in one of the blocks.|
 |{{ebeam:ebeam3.jpg?500|}}|Here's the diagram from the manual showing the various parts. The filament is the cathode, while the crucible and crucible holder are the anode.|