[ARC5] Bare Aluminum USN sets.

[Geoff]

----- Original Message ----- 
From: "Mike Morrow" <kk5f at earthlink.net>
>
>> If the corrosion gets between the potted capacitors and the chassis,
>> the designed RF bypassing is gone and instead you have interstage 
>> coupling.
>
> A "problem" that, one suspects, would likely **not** have been ameliorated
> by paint on the externals of the equipment.  And one that the VHF AN/ARC-5
> units, lacking such paint, seem to have avoided.
>
> 73,
> Mike / KK5F


There are aluminum alloys that have a high degree of corrosion resistance 
and apparently sufficient to survive the combat years and almost 70 years 
later. Many of those alloys were developed at the time.