DOD R-430 C Series Dual 15 Stereo Band Graphic Equalizer, Rack Mount
Looks like it has had the input and output rewired. Needs electronics cleaned.
DOD R-430 C Series Dual 15-Band Stereo Graphic Equalizer EQ USA Tested Works
DOD R-430 C Series Dual 15-Band Stereo Graphic Equalizer. Professional USA-made dual-channel graphic equalizer in good working condition. This unit has been tested and is fully functional. Manufactured in the USA by DOD Electronics (Salt Lake City, Utah) with a September 1991 production sticker.