Magnus Danielson wrote:
> From: "Poul-Henning Kamp" <[EMAIL PROTECTED]>
> Subject: Re: [time-nuts] Fan for old HP synthesizer (was RE: time-nuts
> Digest, Vol 21, Issue 20)
> Date: Tue, 18 Apr 2006 21:43:18 +0200
> Message-ID: <[EMAIL PROTECTED]>
>
>&g
I have 3 HP synthesizers with what looks like the same fan: 8672, 8673
and 8656, and they are all very loud, the worse being the 8656. On top
of that, the 8656 fan still runs when the unit is in standby. I have
thought many times that I wanted to replace it with a 12V model so that
I could wire
From: "Poul-Henning Kamp" <[EMAIL PROTECTED]>
Subject: Re: [time-nuts] Fan for old HP synthesizer (was RE: time-nuts Digest,
Vol 21, Issue 20)
Date: Tue, 18 Apr 2006 21:43:18 +0200
Message-ID: <[EMAIL PROTECTED]>
> In message <[EMAIL PROTECTED]>, "Christop
06 3:43 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Fan for old HP synthesizer (was RE: time-nutsDigest,
Vol 21, Issue 20)
In message <[EMAIL PROTECTED]>, "Christopher Hoover" writes:
>As someone else mentioned, the form factor is often q
In message <[EMAIL PROTECTED]>, "Christopher Hoover" writes:
>As someone else mentioned, the form factor is often quasi-standard. Poring
>over the Digi-Key catalog may be your best bet.
>
> Mtg Hole Ctr Sp - English : 3.25 in
> Thkns - English : 1.5 in
This is what's called a 92mm x
David Forbes wrote:
> The fan model is SWS2107FL-51, HP part number 3160-0296.
David,
Here is the info on that 4x4 p/n. If you can't find a direct replacement
from one of the original suppliers, perhaps the specifications will help you
zero in on a suitable replacement.
As someone else mentione
Assuming that the steel shaft hasn't worn to a smaller size
(the usual cause of failure in a oilite bearing, here is how
you re lubricate the beasts:
1) disassemble and clean in naptha (lighter fluid) use a string,
or small brush to clean the bearing hole in the oilite.
2) heat the bearing unt
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
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
