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Radio Direction Finder from Sperry Gyroscope Company Vintage 1959 - $195 (Brookline)
condition:
excellent
make / manufacturer:
Sperry Gyroscope Company
model name / number:
Radio Direction Finder
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• Construction: Cast aluminum front, aluminum sheet metal body, and fiberglass top—built for durability and precision.
• Technology: Multiple plug-in transistors and ferrite antennas for different frequency bands, such as broadcast, marine, and beacon.
• Functionality: Uses signal strength and directional antennas to find the “null point,” indicating the direction of the signal source.
Dimensions: 11.5” x 12.5” x 4”
These models were primarily used in maritime and aviation navigation to determine the direction of incoming radio signals, helping operators locate transmitters or navigate toward known beacons.