Vintage Realistic 4 Channel Microphone Mixer Radio Shack
This Realistic 4 channel stereo microphone mixer is in Very Good condition. There are a couple of scratches in the paint on the casing, but no dents, rust or corrosion.
The 9V battery compartment is fresh and clean as a whistle.
It can be run in stereo or mono. It can take 1/4" or RCA inputs so you could use it for turntables, etc.
Heck, the instructions are printed on the back.
It's even got a ground screw.