Hello Stefan, LF, I'm looking for a suitable preamp for my "coming sooner or later" tunable ferrite antenna (hopefully covering as much as possible of LF band with a var. cap. plus some switchable ad
W dniu 2011-09-05 14:32, Daniele Tincani pisze: Hello Stefan, LF, I'm looking for a suitable preamp for my "coming sooner or later" tunable ferrite antenna (hopefully covering as much as possible of
Dear Daniele, LF Group, The high-impedance buffer type of loop preamp as I used with my ferrite rod is probably the best choice for your experiments - it has a number of advantages: Low noise - for l
Hello Daniele, Am 05.09.2011 14:32, schrieb Daniele Tincani: Hello Stefan, LF, I'm looking for a suitable preamp for my "coming sooner or later" tunable ferrite antenna (hopefully covering as mu
LF, There was no chance for me to TX in France this year but at least i did some useful comparisons with my single turn loop (1m diameter) and the ferrite antenna. Markus/DF6NM did some CW beacon tra
Hello Daniele, Am 05.09.2011 14:32, schrieb Daniele Tincani: Hello Stefan, LF, I'm looking for a suitable preamp for my "coming sooner or later" tunable ferrite antenna (hopefully covering as much as
Hi Tony, It was posted here (24th August). I attach M0BMUs schematic in this mail. His 50 Ohm based preamp is available somewhere in the web and in my dropbox at http://dl.dropbox.com/u/19882028/LF/M