[R-390] R-390 IF: Looking for 20-pin socket and plug

[Glenn Little WB4UIV]

Before the base closure of Naval base Charleston, DRMO had a mountain of 
R390s.
This was in the gold reclamation era that did not last too long.
There was a guy with an air chisel removing these 'gold' connectors from 
the chassis and modules.
With many 55 gallon drums of these connectors, there was no gold.
I do not know what the gold colored plating was, but, it was not gold.
Gold does not corrode.

A local scrap yard bought these R390 receivers and dumped them into a 
furnace to recover the aluminum.

73
Glenn
WB4UIV


On 6/12/2026 2:37 PM, Fred Moore via R-390 wrote:
> Hi Barry,
>
> Yes, that one would do.  We see it has some environmental corrosion of the
> gold.  But there's no pitting.  I can get that cleaned-up with De-Oxit and
> dental brush that looks like a mini test tube cleaning brush.
>
> Could you let it go?  I'm in the ARRL 'call book' under WN9i.
>
> - Fred
>
> ------ Original Message ------
> Received: Fri, 12 Jun 2026 05:59:52 PM GMT
> From: n4buq<n4buq at knology.net>
> To: Barry<n4buq at knology.net>Cc: Fred Moore<fred_moore at usa.net>, R-390
> Mailing List<r-390 at mailman.qth.net>
> Subject: Re: [R-390] R-390 IF: Looking for 20-pin socket and plug
>
> Here’s a picture.
>
> Thanks,
> Barry
>
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-- 
-----------------------------------------------------------------------
Glenn Little                ARRL Technical Specialist   QCWA  LM 28417
Amateur Callsign:  WB4UIVwb4uiv at arrl.net     AMSAT LM 2178
QTH:  Goose Creek, SC USA (EM92xx)  USSVI, FRA, NRA-LM    ARRL TAPR
"It is not the class of license that the Amateur holds but the class
of the Amateur that holds the license"