I did a layout of the RAH circuit and am not getting signal past the gate of Q1. Here is my scheme and layout. Anyone?
(http://i1077.photobucket.com/albums/w466/pmurray47/RAHSCH_zpsfb50eaa1.png) (http://s1077.photobucket.com/user/pmurray47/media/RAHSCH_zpsfb50eaa1.png.html)
(http://i1077.photobucket.com/albums/w466/pmurray47/RAH_zps455d47e7.png) (http://s1077.photobucket.com/user/pmurray47/media/RAH_zps455d47e7.png.html)
I've been playing this game too long. I look at the layout and my mind immediately starts making suggestions.
Are you sure your BS170 is good? Those are ESD sensitive, IIRC.
Agree with Alan, swap q1. Also double check the pin out. I've screwed this up more times than I want to admit...
Pinout is correct. I'll try swapping the BS170
Never hurts to breadboard a problem area. That section would onlybtake a couple of minutes.
The trace from the drain if Q2 looks aweful close to the gate pad. Did you run the drc to make sure it wasn't too close? If so, maybe there is a manufacturers error there??? I would make sure there is not continuity between the drain and gate pads.