[Boatanchors] Low Pass Filter Comparisons

[Carl]

The B&W has the best stop band attenuation but the teflon sheet 
capacitors cant handle 1500W at much over a 1.5:1 VSWR. I use the B&W 
between 2 modern ricebox rigs and amps and a Johnson or ICE at the 
output. The boatanchor stations use Johnsons since they were a lot more 
common at ham fleamarkets for low cost. I wouldnt trust a B&W at a KW of 
AM.

Carl
KM1H



As mentioned the Drake and Bud are also good, as long as nobody got 
loose with a screwdriver and tried to adjust.


----- Original Message ----- 
From: "Glen Zook" <gzook at yahoo.com>
To: <boatanchors at mailman.qth.net>; "Michael D. Harmon" <mharmon at att.net>
Sent: Tuesday, November 11, 2008 9:16 PM
Subject: Re: [Boatanchors] Low Pass Filter Comparisons


> In my experience the Drake TV-1000-LP beats both of them and 
> definitely is of "boat anchor" time frame.
>
> Glen, K9STH
>
> Website:  http://k9sth.com
>
>
> --- On Tue, 11/11/08, Michael D. Harmon <mharmon at att.net> wrote:
>
> From: Michael D. Harmon <mharmon at att.net>
>
> Can anyone give me an idea of the relative performance of the B&W 425 
> and the Johnson 250-20 low pass filters?  I believe they are both 
> supposed to be rated at a KW or so (probably AM).  I'm looking for one 
> for my AM/CW boatanchor station and they both seem to be readily 
> available, but I may as well get the one with the best specs and 
> reputation for quality.
>
> Anyone have any preferences?
>
>
>
> _______________________________________________
>