I've seen a couple posts that mention home made versions of the Dr. Z Air Brake attenuator. Does someone out there have experience building one of these from a reliable plan?
I built one using this layout:
https://www.dropbox.com/s/3xy018taaexhoe6/attenuator_layout_final_195.pdf
(https://www.dropbox.com/s/3xy018taaexhoe6/attenuator_layout_final_195.pdf)
Can't remember where I got it from originally, but I followed it and had good results. I skipped the rheostat portion as the bedroom level option didn't interest me very much. Mine ended up being mounted inside the cabinet of a 2x12 18 watt Marshall clone I built. I used it pretty much all the time to knock a few dBs off the amp.