[R-390] Filter Bandwidth Question

rkofler at aol.com rkofler at aol.com
Wed May 13 10:53:18 EDT 2020


 I used an HC10 with my R390A and it worked very well after recapping and adjustment. A couple years ago I purchased a CV591A which also works well, but not any better than the HC10.
Roger K7DDG
 
 
-----Original Message-----
From: Roy Morgan <k1lky68 at gmail.com>
To: Ed G <ed.n3cw at gmail.com>
Cc: r-390 at mailman.qth.net <r-390 at mailman.qth.net>
Sent: Tue, May 12, 2020 9:16 pm
Subject: Re: [R-390] Filter Bandwidth Question

Ed,

<Spoof mode ON>
That HC-10 is just going to cause you frustration and confusion with all those knobs and so on.  
Just send to me and I’ll save you lot of trouble.  I'll pay shipping.
<Spoof mode OFF>

With some luck, I still have the HC-10 I used to have, buried in the storage unit I am a long distance from now.

As I remember the thing ran quite hot.  I plan to put a fan on top of mine (small muffin fan with rubber feet on each corner) for a no-modification cooling system.  You might check filament voltage and decide that a line bucking transformer is in order, for that and the R-390A

Do enjoy learning and using it.  

Roy

> On May 12, 2020, at 9:39 AM, Ed G <ed.n3cw at gmail.com> wrote:
> 
> Thanks all for the comments on my filter question.  Spent more time this morning with the 390A…I am thinking now the issue is basically pilot error.  I had been listening with a fairly new-to-me Hammarlund HC-10 being fed from the 390A IF output.  …
…


Roy Morgan
K1LKY since 1958
k1lky68 at gmail.com




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