[ARC5] improving conductivity with aluminium

[don davis]

Chemfilm or Alodyne is a permanent solution to the corrosion problem.
Normally done at finished chassis level, but you might be able to spot
touch-up critical areas.  Might check the race car guys - they use different
colors and types for Holley carb finish touch-up.  Use only the conductive
version (I no longer have the MIL-Spec numbers for all of these).  Most WWII
electronics chassis are raw Al since the life expectancy was in the months
and most PM&P engineers felt the war would be over early - long before any
rot would affect operation.  Remarkable that any of this stuff works after
75 years of corrosion, leakage, tin whiskers, etc.

In the US we also flirted with the idea of aluminum house wiring in the mid
'60s.  Nearly all have failed and been replaced.  My wife's house still has
some dead outlets fed from aluminum wire.

73 de don ad6pb

-----Original Message-----
From: ARC5 [mailto:arc5-bounces at mailman.qth.net] On Behalf Of Brian
Sent: Thursday, February 05, 2015 4:50 PM
To: Mike Hanz; arc5 at mailman.qth.net
Subject: Re: [ARC5] improving conductivity with aluminium

Hello Mike,

Almanox may well be an Australian product. As there is no longer any
aluminium electrical wiring conduit used in Australia, Almanox is no longer
available. Aluminium enjoyed favour in Australia shortly after the Snowy
Mountains Hydro-electric scheme came on line, providing cheap power for
smelting bauxite. Now, electricity demand exceeds supply and the greenies
have such powerful voices that no more hydro or coal-powered electricity
generation stations can be built. So, there is even talk of nuclear power,
leaving the residue for our children's children to manage.