Picked up this mixer for $10 at a local recycled computer place.
Doesnt turn on yet, may need a fuse, and potentially the lamp(?).
Has 8 channels, stereo and monitor out. reverb, and looks sweet.
Theres a feedback filter section and a know that reads "Tone Osc Level"
the faders actually move a belt that turns 2 pots, crazy wierd.
http://es.shure.com/idc/groups/tech_pubs/@global_managed/documents/webcontent/us_pro_sr101_ug.pdf