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Re: [TenTec] On Switching Power Supplies

To: "tentec@contesting.com" <tentec@contesting.com>
Subject: Re: [TenTec] On Switching Power Supplies
From: Kim Elmore <cw_de_n5op@sbcglobal.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sun, 19 Jan 2014 10:49:10 -0600
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
Yep, regens, not super-regens. Mea culpa!

Kim N5OP

"People that make music together cannot be enemies, at least as long as the 
music lasts." -- Paul Hindemith

On Jan 19, 2014, at 10:23, John Farler <k4avx1@windstream.net> wrote:

> Really?  Super-regen receivers?  Help me out here.  I know how a
> regen rx works, but I've never heard of a "super-regen" except on
> Vhf ala the famous Heath Lunchboxes.  They didn't decode CW,
> nor  SSB. I know very little about their theory of operation.
> 
> But Regens will decode CW, of course, but would need a stage
> or stages of RF amplication (or isolation) in the front end to
> keep the RX from sending out a signal that could be detected
> from it's oscillating detector.
> 
> Not saying a real "super-regen" might not somehow be used, but
> please fill me in...Maybe you are referring to such REGENS as
> described above as "super regens?"
> 
> John, K4AVX
> 
> Message: 3
> Date: Fri, 17 Jan 2014 16:44:07 -0600
> From: Kim Elmore<cw_de_n5op@sbcglobal.net>
> To: Discussion of Ten-Tec Equipment<tentec@contesting.com>
> Subject: Re: [TenTec] On Switching Power Supplies
> Message-ID:<B88F15AE-8654-4639-86AB-E4A1C419617C@sbcglobal.net>
> Content-Type: text/plain;    charset=us-ascii
> 
> If and only if the sole and singular concern is RF quiet operation, the a 
> linear supply is the only choice. If efficiency plays a role, the you choose 
> the technological path.
> 
> As an aside, in WWII and the decades that followed -- when CW was the 
> dominant mode and required only a Second Class Radiotelegraph license was 
> needed -- most ships used super regen receivers, even though superhet 
> receivers were significantly better. Why?
> 
> Because submarines couldn't find shops with super regen receivers because 
> they're radio-quiet.
> 
> It all depends on the operational constraints.
> 
> Kim N5OP
> 
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