Topband: QST Jun 06 RX Loop

Jim Kearman jkearman at
Sun May 14 09:19:30 EDT 2006

From: Earl W Cunningham <k6se at>
>  His preamp design is also interesting.

IMO, pound for pound, the W7IUV preamp is the deal of the century. I've built a few of them, using 2N3725As and 2N5109s. I even cascaded a 5109 driving a 3725A to use as a bench preamp.2N3725As are noisier than 2N5109s but cheap on the Bay.


Jim, KR1S

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