I have the Johnson Matchbox here, and in use currently, and got it to work
on 30 meters by running another tap off of the variable cap that has the end
fed wire tap. All I did was install another tap on the opposite side of the
condenser, as if one was going to install a second end fed wire tap.
----- Original Message -----
From: "Al Scanandoah" <k2zn@rochester.rr.com>
To: <tentec@contesting.com>
Sent: Monday, June 30, 2003 7:26 PM
Subject: Re: [TenTec] T tuner (transmatch) losses?
> I've never had much success with getting my old EFJ Matchbox to play
> well for me on 30m, even with moving the tap points on the input - there
> was always too much heat and too high a VSWR.
>
> The best solution I've found for 160-30m is a balanced matching network
> with a pair of roller inductors and a 1000 pF variable cap, with an
> additional 2000 pF to switch in for 160. I tend to run more QRP than
> 100w (never more than that), so every fraction of a dB of loss reduction
> certainly helps.
>
> 73 - Al, K2ZN
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
>
|