Pfeiffer Vacuum TPS300 PM 041 814 AT Turbo Pump Controller - AS IS 144834431531 Manufacturer Apple Model Number M5521

Manufacturer Apple Model Number M5521 SKU 19-78907 Ref 23-113723

Manufacturer Middle Atlantic Model Number TRACK25 SKU 19-82294 Ref 23-119126

5A-P Digital Outputs

Manufacturer Sony Model Number HST-330 SKU 19-60295 Ref 23-84371

Pfeiffer Vacuum TPS300 PM 041 814 AT Turbo Pump Controller - AS IS 144834431531 Manufacturer Apple Model Number M5521This item is sold AS IS. No returns or exchanges are accepted. Condition For parts or not working Description When power is applied, the unit clicks about once every second or two and never outputs voltage from the output connector. Unit is missing part of the internal heatsink and has minor corrosion. For this reason, we are selling the unit AS IS for parts repair as a non working or incomplete unit. We have not tested inspected any further, item may