In a recent video (linked below), I presented a circuit that was designed to be used with a scanning receiver, whose function was to provide a constant audio output level from the receiver – thus eliminating the annoying variations in volume of the various received signals. The video can be found here:
https://www.youtube.com/watch?v=1h0FZJYXQ_w
Ludvig, SM6XUN, was kind enough to design a PCB for this design, and has made it available on OSH Park for anyone to order. The project can be found here:
https://oshpark.com/shared_projects/0ZEKkiBU
And here are the schematic:
http://www.qsl.net/w2aew/youtube/audioleveler_sch.pdf
and PCB placement files:
http://www.qsl.net/w2aew/youtube/audioleveler_placement.pdf
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