[R-390] history and evolution of the Collins gear

[chacuff]

You need a copy of "Shortwave Receivers Past and Present".  Outlines pretty 
much all of that.

Out of print right now but used copies are available from time to time on 
Amazon.  But be prepared to spend big bucks...it's a sought after reference 
and the used copies are high.

I've been looking for one myself...the latest one.

New one is being printed for release this summer I heard.

Cecil...
----- Original Message ----- 
From: "Raymond Cote" <bluegrassdakine at hotmail.com>
To: "milsurplus" <milsurplus at mailman.qth.net>; <r-390 at mailman.qth.net>; 
<boatanchors at mailman.qth.net>; <boatanchors at theporch.com>
Sent: Monday, May 28, 2012 2:56 AM
Subject: [R-390] history and evolution of the Collins gear


>
> The mil list has been talkin lately about the R388 and 51J3 equipment. 
> This brings to mind the thought of the evolution of these great receivers. 
> When was the first designe, what was the first one?  51j1???   Was there 
> units before the J series?  What are the capabilities of the various 
> lineage?  from the 51H, 51J, 51S R388, R389, R390 390A 391 and so forth? 
> Does anyone have all this in writing or does it have to be compiled, 
> perhaps on these lists?
>
> thanks all
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