FILTEQ

Absession has released Filteq, a freeware 3-band coloring equalizer VST/AU plugin inspired by the Filtek MK3 vintage hardware EQ.

Filtek MK3 is a hardware equalizer from the 1970s, manufactured by the Swiss company FILTEK Labo SA based on the original design by Stefan Sulke. Designed primarily for use as broadcast modules, Filter MK3 and other units inspired by its design later found their use in recording studios. The EQ featured transformer-balanced inputs and outputs, a bypass switch, 3 parametric bands with a 12-way frequency selector on each one, and a pair of filters.

http://analogobsession.com/product/filteq/