[Elecraft] PlugIn Balun for K2/Kat1 ATU

[Peter Zenker]

Inspired by the article in QRP Homebrewer  of W1CQ and after doing some
experiments, we designed a PlugInBalun for the K2/K1 ATU. It is housed
in a small 50mm x 30mm x 25mm box and fits direct on one of the BNC
jacks of the Tuner.
Its an 1:4 Balun, the VSVR between 1 MHz and 30 MHz is less the 1,1. As
usually from QRPproject you can get either the description to make it
complete on your own, or a kit. In the special case we added a ready mad
PlugInBalun which is shipped including its individual chart measured
from 1 to 30 MHz.

Pictures of the PlugInBalun can be found at
www.qrpproject.de/K2_K1_balun.htm (English) or
www.qrpproject.de/qrppbaluns.de (German)

73 de Peter,=A0 DL2FI
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DV Berlin DARC e.V.
German QRP Group DL-QRP-AG http://www.dl-qrp-ag.de
QRPproject QRP and homebrew international http://www.qrpproject.de