Just found out where this set came from and who owns it. This set belonged to Mrs. Rose Roti who lived on 1031 Woodbine Ave (cool house) in Oak Park IL. Sadly, Mrs. Roti passed in 1997. Wonder what she would think if she saw the set working again.
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Admiral C322C2 Regent (Restoring)
RCA CTC-7 Pensbury (Restored)
RCA CTC-5 Westcott (Restored)
CRA CTC--4 Director 21 (Restoring)