27 Dec
2012
27 Dec
'12
5:12 p.m.
Date: Thu, 27 Dec 2012 09:20:49 -0500
From: allison <ajp166 at verizon.net>
To: General Discussion: On-Topic Posts Only <cctech at classiccmp.org>
Subject: Re: Fans for a PDP-9?
Message-ID: <50DC5941.3000500 at verizon.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 12/26/2012 03:22 PM, Michael Thompson wrote:
These are from pre-boxer fan days, the old "phonograph style" motor.
They have oilite (porous sintered bronze) bearings mounted in a
cotton oil wick. You can add a lot of oil to the wick material and let
it soak in, then clean and oil the bearing and shaft when reassembling.
By the time the surface oil is used up, new oil from the wick should
soak through.
Jon
Does anyone know of a source of fans for a
PDP-9?
You can see one of the fans at the right of this image:
https://sites.google.com/a/ricomputermuseum.org/home/Home/equipment/dec-pdp…
Just take them apart and lube the bearings with light machine oil. Using
WD40 only dries them out further.
If tha tis too hard then Rotron should have something that bolt pattern.
