I realize it's a bit off topic, but not too far, as keeping old HP stuff alive is a significant fraction of time-nuts activity.
Our telescope uses several old HP 8672A 2-18 GHz synthesizers. These beasts use a bizarre fan made by IMC that is basically the inside of a muffin fan mounted on four rubber vibration isolators. The sleeve bearings only last 20 years or so in the dry air-starved environment at 10,000 feet altitude, and we just had one grind to a halt last week. I cleaned it and added oil, but this is a stopgap measure as I don't have the ability to really soak the oilite bearing in oil. The fan model is SWS2107FL-51, HP part number 3160-0296. Google reveals nothing but the sites with lists of every part ever made. Does anyone know of a replacement fan for these machines? Or does anyone have good re-lubrication tips? Thanks in advance for your help. _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts