OPTIMUS STA-20 AM/FM STEREO RECEIVER Model 31-1979 
Power Supply Hum 
Working
Working unit. Sounds OK. Has a faint power supply hum. It will need a recap on the power supply. Has scuffs scratches, and discoloration from age.  
120 volt 60hz
8 ohm output 5 watts.
Tape and phono inputs.

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