14 May
2012
14 May
'12
5:58 a.m.
Look on the bright side - there's no plywood or MDF.
I once picked up an arcade cabinet from a guy without realizing that a mischief of mice
had made it their home while it was in long-term storage. As gross as I'm sure that
power supply was when you first opened it up....
You may think you can clean years of mouse urine out of MDF.... and I'm willing to
grant the possibility that it may actually be theoretically possible. but I eventually had
to give up and put the cabinet at the curb.
------------------------------
Message: 28
Date: Mon, 14 May 2012 00:01:34 -0700
From: Seth Morabito<lists at loomcom.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Subject: PDP-11/35 power supply woes
Message-ID:<9B95838A-9A34-4296-A18D-5107E43D9A99 at loomcom.com>
Content-Type: text/plain; charset=us-ascii
Ugh. It was a fairly disappointing day on the PDP-11/35 restoration front. I've
updated my restoration journal (http://www.loomcom.com/projects/pdp11-35/index.html ),
but in summary, my H750 power supply is one big gross mess.
Take a look at the condition it was in:
http://www.loomcom.com/projects/pdp11-35/bc05t_rust.jpg
http://www.loomcom.com/projects/pdp11-35/h750_out.jpg
http://www.loomcom.com/projects/pdp11-35/h744_messy.jpg
http://www.loomcom.com/projects/pdp11-35/h744_corrosion.jpg
http://www.loomcom.com/projects/pdp11-35/xformer_mice.jpg
http://www.loomcom.com/projects/pdp11-35/rusted_parts.jpg
All that pink stuff is fiberglass insulation. Mice got into the power supply, and made it
a nest and toilet. Everything is soiled, and lots of exposed metal is corroded.
I'm feeling kind of low about this. I do believe this is restorable, but the amount of
time it's going to take is bumming me out. I'll have to disassemble everything,
right down to the last screw, and clean anything that's cleanable, strip rust off of
anything strippable, and test all the parts individually. The fan will probably need to be
replaced.
Plus, it's just yucky, y'know?
At least I've cleaned out the mouse nests. That's a start, I guess.
-Seth
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14 May
14 May
9:34 a.m.
In article <4FB10164.9050300 at rjlsystems.com>,
Barry Callahan <barryc at rjlsystems.com> writes:
You may think you can clean years of mouse urine out
of MDF.... and I'm
willing to grant the possibility that it may actually be theoretically
possible. but I eventually had to give up and put the cabinet at the curb.
I wonder if "nature's miracle", which is designed to eliminate the
odor of cat urine, would have worked in this scenario.
--
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<http://tinyurl.com/d3d-pipeline>
The Computer Graphics Museum <http://computergraphicsmuseum.org>
The Terminals Wiki <http://terminals.classiccmp.org>
Legalize Adulthood! (my blog) <http://legalizeadulthood.wordpress.com>
11 a.m.
On 14 May 2012 at 10:34, Richard wrote:
I wonder if "nature's miracle", which is
designed to eliminate the
odor of cat urine, would have worked in this scenario.
In the cases I've seen, it's not just mouse pee, but mouse feces a
half-inch thick over everythng.
I've found that aerosol oven cleaner (e.g. EZ-Off) generally will get
rid of that stuff--and leave no odor behind.
But don't spray it on aluminum--it etches the finish.
--Chuck
3:59 p.m.
I wonder if "nature's miracle", which is
designed to eliminate the
odor of cat urine, would have worked in this scenario.
Maybe, maybe not. Natures Miracle only goes so far. I had a friend with a
wood floor with cat issues, and even after months of use, the wood was
still stinky.
--
Will
6:09 p.m.
On 14 May 2012 at 18:59, William Donzelli wrote:
Maybe, maybe not. Natures Miracle only goes so far. I
had a friend
with a wood floor with cat issues, and even after months of use, the
wood was still stinky.
Cat urine also has the interesting property that it's one of the few
agents that I know of that can not only corrode PCB traces to the
point that they're just not there, but it seems to easily migrate
under solder mask to do its dirty work.
Cat urine also reacts with the tannins in woods such as oak to leave
a nice dark stain. Oxalic acid is of limited use in such cases. I
was reminded of this as I'd just finished laying an oak floor only to
discover our cat calmly annointing the bare wood.
We no longer have cats. Dogs are much easier on the furnishings.
--Chuck
7:16 p.m.
On 14/05/12 9:09 PM, Chuck Guzis wrote:
On 14 May 2012 at 18:59, William Donzelli wrote:
Sorry to say this, but I lol'd.
--Toby
Maybe, maybe not. Natures Miracle only goes so
far. I had a friend
with a wood floor with cat issues, and even after months of use, the
wood was still stinky.
Cat urine also has the interesting property that it's one of the few
agents that I know of that can not only corrode PCB traces to the
point that they're just not there, but it seems to easily migrate
under solder mask to do its dirty work.
Cat urine also reacts with the tannins in woods such as oak to leave
a nice dark stain. Oxalic acid is of limited use in such cases. I
was reminded of this as I'd just finished laying an oak floor only to
discover our cat calmly annointing the bare wood.
We no longer have cats. Dogs are much easier on the furnishings.
--Chuck
11:41 p.m.
On 15/05/2012 03:16, Toby Thain wrote:
On 14/05/12 9:09 PM, Chuck Guzis wrote:
I can verify the former is true and must also point out that when you
have long hair like these ladies:-
http://www.flickr.com/photos/69740364 at N02/7201478674/in/photostream
http://www.flickr.com/photos/69740364 at N02/7201478340/in/photostream/
It can also clog heat sinks and kill even the most modern of CPU
(although it was replaced under warranty)
On 14 May 2012 at 18:59, William Donzelli wrote:
Sorry to say this, but I lol'd.
Maybe, maybe not. Natures Miracle only goes so
far. I had a friend
with a wood floor with cat issues, and even after months of use, the
wood was still stinky.
Cat urine also has the interesting property that it's one of the few
agents that I know of that can not only corrode PCB traces to the
point that they're just not there, but it seems to easily migrate
under solder mask to do its dirty work.
Cat urine also reacts with the tannins in woods such as oak to leave
a nice dark stain. Oxalic acid is of limited use in such cases. I
was reminded of this as I'd just finished laying an oak floor only to
discover our cat calmly annointing the bare wood. --Toby
Dave
Who now has a good reason NOT to upgrade from Laminate to real wood floors.
We no longer have cats. Dogs are much easier on the furnishings.
--Chuck
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6 comments
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barryc＠rjlsystems.com -
cclist＠sydex.com -
dave.g4ugm＠gmail.com -
legalize＠xmission.com -
toby＠telegraphics.com.au -
wdonzelli＠gmail.com