SEM vacuum relay broken.jpg
From HacDC Wiki
SEM_vacuum_relay_broken.jpg (800 × 600 pixels, file size: 88 KB, MIME type: image/jpeg)
Close-up of the fragile original SEM pump relay.
Click on a date/time to view the file as it appeared at that time.
|current||21:08, 19 July 2015||800 × 600 (88 KB)||Summakor||Close-up of the fragile original SEM pump relay.|