[Milsurplus] Quick n dirty crystal selectivity - it no workee

[Hubert Miller]

No, you’re in the right lunch line. I wondered about that too; it’s supposed to decrease the coupling of the presently overcoupled primary to secondary.

Right now I’m still downsizing to prepare for another move, but i hope to:

get a selectivity graph before, stock

try the one shorted turn idea, graph

remove turns from the seconday, graph

-Hue

 

From: Milsurplus [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of hwhall at compuserve.com
Sent: Monday, February 15, 2016 8:48 PM
To: kargo_cult at msn.com; milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] Quick n dirty crystal selectivity - it no workee

 

Yes, there is that. Oh, well. My memory is trying to recall another stunt I though I'd seen for fiddling with coupling... seems like it involved a 1-turn ring between coils. Or maybe I'm out to lunch on that! 

 

Wayne
WB4OGM

 

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