Auto transformer for 160m inverted L
Displaying 1-2 of 2
| Jan 2nd 2016, 23:18 | |
v_c_nunnTotal Topics: 0 Total Posts: 0 |
I bought one of these many decades ago at a hamfest. It was homebrew, made inside 6" PVC pipe, and had stainless hooks top & bottom for mounting. It also had a UHF (SO-239) connector for connecting coax. I installed it with 135' of wire in an inverted L, approximately half verticle, half horizontal. It worked great on both 160m & 80m, in that I won the ARRL 160 Contest using it back in the 1990's. I also used it on the Geratol Net on 80m, working Alaska! It was totally destroyed, but want to put up a similar antenna. I cannot find any information about making the tapped auto transformer, however. Any help? |
| Jan 3rd 2016, 06:11 | |
W1VTSuper Moderator Total Topics: 0 Total Posts: 0 |
See page 24-36 of the ARRL Antenna Book 23rd edition for an old autotransformer design using a ferrite core--it is also in earlier editions on a different page. Here is a study on different transformers http://www.karinya.net/g3txq/unun/ Zack W1VT |
Displaying 1-2 of 2
