An RCA Victor AM radio.
RCA Victor was an Earth radio manufacturing company that originated in the United States of America during the early 20th century.
The 1936 Ford truck discovered in the Delta Quadrant was equipped with an RCA Victor brand AM radio. While testing to see if the radio still worked after 400 years, Tom Paris turned it to a frequency that picked up an SOS transmission from a nearby planet. (VOY: "The 37's")