"The base loading coil is nearly identical in design to the toroidal coil of AD5X, linked below. I do intend to find 160 & 80m tap locations for the antenna."
FYI - The maximum power I've run with my 43-foot vertical and matching system is 1200 watts with no problems experienced for several months. But then one humid morning the unit did arc from the output connection across the electrical box to a nearby ground point (you could see a nice carbon trace across the box). The SWR jumped suddenly and the amplifier (ALS-1300) tripped out like it should. I replaced the output screw with a ceramic feedthru and haven't had the problem since. As Tom W8JI stated, the voltages can be extremely high especially if you are running high power. If you run an amplifier, I'd recommend using a ceramic feedthru output, and keep the output port several inches away from any ground connections. Phil - AD5X ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
