I live in a neighborhood where there is horrendous noise to the point
where I can't receive weak signals. My setup has an RME DB-20 R.F.
preamp feeding the Hammarlund. The antenna is just a wire I ran through
the trees away from any power lines. Some of the noise was coming from
early generation CFL's, some from my SCR touch lamp which makes noise
even while off. Even cell phone battery chargers and AA NiMH chargers
seem to have switching supplies in them and they probably all came from
China. I turned off my plug strip feeding this mess and the noise went
down but was still there. I turned off everything in the house and still
had noise.
When I put my scope on it the noise was synced to a major peak at both
the 90 degree and 270 degree points and did look like scr noise.

Now the hard part.
Can I put a noise blanker between the preamp and the radio?
I know that Hammarlund had a noise blanked circuit but these are very
hard to find and usually a lot of $$$$.
I am/was an electronics engineer for over 30 years but I find myself at
a loss as to what I should build or buy.
A noise blanker on the antenna input to the preamp seems like a good
place to put a blanker but the signal off the 25 foot 'long' wire might
not be enough to work with. My thinking is that it would be good to
intercept the noise before it even gets into thee tuned circuits and
causes ringing or some other side effect.

Ideas please.
Thanks,
Bill Baka