[Hallicrafters] Nicotine stains

[Roger K8RI]

On my SX-101 and HT-32 panels I use Windex (TM) and a soft paper towel, but 
that it with the panels removed.  Windex has Ammonia in it and is not good 
for Aluminum and should be rinsed off. I don't know as it'd be safe to use 
with the panels in place.  It's actually a coating of tar as I believe Barry 
mentioned and if that's what's on there it will be very evident on the 
towel. I turned about 4 or 5 towels yellow before I had the one clean.

409 is bad stuff around Aluminum.  It will really corrode Aluminum if any 
traces are left behind.  I had to replace one of the gear doors on the Deb 
after using 409.  Those doors are a bit over $400 each.  Of course there are 
those two, $500 hinges riveted to the doors and a whole bunch of labor that 
go along with the rest of the job.

The doors cleaned up nicely and I was careful to give then a thorough rinse 
from a hose, but the one started growing white *stuff*. In weeks there were 
holes in the inner skin. (The doors are a two layer sandwich)

Roger Halstead (K8RI and ARRL 40 year Life Member)
N833R - World's oldest Debonair CD-2
www.rogerhalstead.com

> Hi,
>
> How does one tell if the yellowy colour on a receiver
> is a nicotine stain or just old clear coaing of some
> sort? No jokes you wisenheimers, :)
>
> Happy holidays,
> DA
>
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