RCA Type 56E Passive EQ MI-4162A Line Equalizer Vintage Rare
The internal labels show RCA part numbers and markings includingMI-4162 ,M-140406, andXT-1314. RCA Type 56-E / MI-4162 equalizer assembly. Two equalizer sections. Due to age and condition, this should be inspected and serviced by a qualified technician before use.