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Bazz4CQJ · 24th Jul 2020, 3:02 pm

I've not heard of REFCOM. You are obviously working in the dark without having the circuit diagram; wonder how many transistors it uses?

I've built two magloop amps; one designed by Paul Tempest which used 5 transistors and the other being the Wellgood using a pair of 2N3866. The Wellgood is presently outside hanging from a tree. At this time of year, so much of my time is taken up with looking after the garden that there's not much left to do radio stuff.

There's absolutely no doubt that the use of a magloop is a very effective way of countering RFI problems, though of course, as well as the amp, the design of the loop is an interesting issue.

B

24th Jul 2020, 3:02 pm	#37
Bazz4CQJ Dekatron Join Date: Apr 2009 Location: Oxfordshire, UK. Posts: 4,935	Re: ATU vs. Preamp vs. Active Antenna I've not heard of REFCOM. You are obviously working in the dark without having the circuit diagram; wonder how many transistors it uses? I've built two magloop amps; one designed by Paul Tempest which used 5 transistors and the other being the Wellgood using a pair of 2N3866. The Wellgood is presently outside hanging from a tree. At this time of year, so much of my time is taken up with looking after the garden that there's not much left to do radio stuff. There's absolutely no doubt that the use of a magloop is a very effective way of countering RFI problems, though of course, as well as the amp, the design of the loop is an interesting issue. B __________________ Saturn V had 6 million pounds of fuel. It would take thirty thousand strong men to lift it an inch.