These basic bass controls were obtained from an article in Electronics Now magazine in February 1995. They are basic passive circuits in (a) basic tone, (b) boost, (c) cut, and (d) flat response.
This filter was found in the October 1969 issue of Radio Electronics magazine. The frequency...
The circuit in the figure has the same purpose as the previous one (CBV15991E), except that it has a...
Found in a Popular Electronics from the 90s, this circuit can be adapted to use LEDs. The power...