[Amps] Chokes

jeremy-ca km1h at jeremy.mv.com
Wed Jun 27 19:31:19 EDT 2007


Your question certainly did appear. I was about to answer but got 
distracted.

As long as the reactance on 160M is roughly 10 times or more than the input 
impedence it will be fine. In your case it is roughly 510 Ohms.  The other 
important thing to check is the filament voltage, too much I*R drop thru the 
wire isnt good. I built several SB-200's as 160M monobanders for customers 
when the "QRP" limits were lifted. I used a 7" rod but dont 'member the mix. 
Most likely it was 33  rather than 61 which is more for higher frequencies.

Carl
KM1H


----- Original Message ----- 
From: "c s" <carlseye at verizon.net>
To: <amps at contesting.com>
Sent: Wednesday, June 27, 2007 4:53 PM
Subject: [Amps] Chokes


>       I have been informed that my question about Fil. chokes never
> appeared on this list, Why, I have no idea.!! I've been on this list for
> a "long" time now , and some of the "best" have been "banned: for
> whatever reason.!! However !! *If someone" doesn't want to see my
> questions, Well , please tell me now.!!  If What I have to ask , or say,
>  is too much , let's say it's just not important to "them". Thanks to
> all , anyway.!!!
>       carl / kz5ca
>
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