[R-390] Chassis finish

[Barry]

Yes, the finish is Alodine (or a generic chromate coating -- not
specifically Alodine which is a brand name product).  I have had two chassis
recoated and they look great.

Barry - N4BUQ

----- Original Message -----
From: "DW Holtman" <future212 at comcast.net>
To: <R-390 at mailman.qth.net>
Sent: Thursday, December 29, 2005 3:22 PM
Subject: [R-390] Chassis finish


> Hello,
>
>
> Does anyone know if the yellow coating put on the aluminum parts
> (including the chassis) throughout the R-390A  is Alodine? I was under
> the impression that Alodine was not tough enough for an exterior coating
> on a chassis, that will be subjected to rough handling.
>
> Another question. Was the modification that installed variable caps
> (C-569 through C-571) in the input and output of the mechanical filters
> in the If module applied at Depot during rebuilds, or just put on newly
> manufactured modules?  The reason I'm asking, there is an IF amp for
> sale on Ebay without the variable caps on the IF Module. It went through
> depot 1982, and does not have the variable caps. This particular module
> looks like it has yellow plastic caps? Ebay item number is 5847326968.
> I'm just courious about this mod, because I have two IF modules, one
> with and one without the mods. Thank you in advance for any help.
>
> Happy New Year to all.
>
> 73's
> DW Holtman
> WB7SSN
>
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