I posted this a couple post back. I had a chance to build one today. It is as good as it gets. I connected it to my power supply and listened with no input. Nothing, not even a hum. I put a test lead on the input and when I touched it I had hum. When I put the lead on the bench, nothing. I connected the antenna and had some hum. I put a coil across the input and nothing. When I get some more shop time it will go in a box with some jacks for the I/O.
I put my scope on the I/O but it was to low a signal to read on the Input when it started distorting the Output. Very sensitive and very stable makes this one a keeper.
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