[time-nuts] Fan for old HP synthesizer

[John Ackermann N8UR]

Hi David --

I can't help you with that specific part, but I've replaced the fan on
other HP gear and usually found a standard variety fan that would fit.
Have you checked the mounting dimensions and clearance to see if
something else might work?

John
----

David Forbes said the following on 04/17/2006 03:44 PM:
> 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.
> 
> 
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