[AMRadio] A dirty stinky question

[Mike Sawyer]

Charlie,
    I would attempt a solution of 70% water and isopropanol first. Its the 
least aggressive of solvents out there. If that doesn't help, try either 
denatured ethanol, (usually denatured with methanol) or straight methanol. 
All can be readily had at your local hardware store easy enough. Unless they 
think you are using it to make 'meth'.
Mod-U-Lator,
Mike(y)
W3SLK
----- Original Message ----- 
From: "CL in NC" <mjcal77 at yahoo.com>
To: <amradio at mailman.qth.net>
Sent: Friday, August 23, 2013 4:48 PM
Subject: [AMRadio] A dirty stinky question


I just recovered an old HP nixie tube freq counter I had loaned to a friend 
who is now a SK. It had become mouse infested, that's about the only size 
thing that would fit through the fan vent holes, and while all the dry stuff 
came out nicely, the display board had a urine bath. Does anybody have a 
sure fire way or dissolving or removing the rat pee residue from a circuit 
board? The 250 VDC nixie voltage finds about a thousand ways to ground when 
you fire it up, nice subminiature fireworks display though, will probabaly 
need a bunch of nixie driver chips..


Charlie, W4MEC in NC
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