[TenTec] Johnson matchbox tuner,

[w8au at sssnet.com]

At 01:33 PM 3/27/06, Lee A Crocker wrote:
>If you take apart a match box you will see the link
>coil is tapped in the middle and at the end.  The
>middle tap goes to the coax connector to the rig.  The
>end tap goes to the Recieve terminals through the
>relay.  I put a switch so I could switch between the 2
>taps, the middle and the end.
>It extends the match in some circumstances.

The extra link winding for receiver was to match 300 ohms, which
a lot of receiver inputs were then.

This would allow some variation in Z transformation...maybe
match output Z's of a lower value.

w8au