It’s not every project write-up that opens with a sentence like “I had this TURBOVAC 50 turbomolecular pump laying around…”, but then again not every write-up comes from someone with a lab ...

[Mark Aren] purchased a pair of Turbomolecular pumps (TMP) sans controllers, and then built an FPGA based BLDC controller for the Turbomolecular pumps. A TMP is similar to a jet turbine ...

“This turbomolecular pump is currently isolated by a VAT Throttling Valve.” “The grid is then attached to a 30kV rated High Voltage Feedthrough connected to a 5kV Unilab power ...