Interesting find tearing down a Residual Gas Analyzer

[Reupload/edit] A coworker gave me an old busted Residual Gas Analzyer and this is its teardown. I could have probably scammed someone out of $400 on Ebay as a used/for parts RGA and untested, but decided to have some stupid fun and tear it apart instead. The detector ended up being a surprise for me and I learned something new! So I now have probably $4 of scrap metal and bits instead of a $400 RGA (or refurbishing it and having a $4000 RGA). Not that I have the electronics/controller/connections or a vacuum chamber big enough to actually use a naked RGA like this. The semiconductor equipment this came from wasn't used with nasty chemicals or anything, so gloves etc were not a worry for me, either in contaminating what I was touching nor in being contaminated by what I was handling. Music by Zen Man on Pixabay