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- Fixed Condenser, Used in the Hammond Radio Research Laboratory, circa 1911 - John Hays Hammond, Jr., was largely responsible for launching the field of radio control. In 1926, he built a medieval-inspired castle in Gloucester, Massachusetts. This site served as his home and research laboratory. With over 400 patents to his name, Hammond developed ideas for radio control, autopilot function, and targeted missile detonation. This device was used in Hammond's laboratory.

- circa 1911
- Collections - Artifact
Fixed Condenser, Used in the Hammond Radio Research Laboratory, circa 1911
John Hays Hammond, Jr., was largely responsible for launching the field of radio control. In 1926, he built a medieval-inspired castle in Gloucester, Massachusetts. This site served as his home and research laboratory. With over 400 patents to his name, Hammond developed ideas for radio control, autopilot function, and targeted missile detonation. This device was used in Hammond's laboratory.
- Fixed Condenser, Used in the Hammond Radio Research Laboratory, circa 1911 - John Hays Hammond, Jr., was largely responsible for launching the field of radio control. In 1926, he built a medieval-inspired castle in Gloucester, Massachusetts. This site served as his home and research laboratory. With over 400 patents to his name, Hammond developed ideas for radio control, autopilot function, and targeted missile detonation. This device was used in Hammond's laboratory.

- circa 1911
- Collections - Artifact
Fixed Condenser, Used in the Hammond Radio Research Laboratory, circa 1911
John Hays Hammond, Jr., was largely responsible for launching the field of radio control. In 1926, he built a medieval-inspired castle in Gloucester, Massachusetts. This site served as his home and research laboratory. With over 400 patents to his name, Hammond developed ideas for radio control, autopilot function, and targeted missile detonation. This device was used in Hammond's laboratory.
- Audio Frequency Amplifier, Model HZ, 1921-1922 - Early radio broadened the cultural horizons of its users beyond the town or county line--the audio frequency amplifier promised to reach even further. While amplifiers are often thought of as devices that only increase the volume of sound, the frequency amplifier was used to enhance weak radio signals. By increasing the receiver's performance, long-distance stations could be received.

- 1921-1922
- Collections - Artifact
Audio Frequency Amplifier, Model HZ, 1921-1922
Early radio broadened the cultural horizons of its users beyond the town or county line--the audio frequency amplifier promised to reach even further. While amplifiers are often thought of as devices that only increase the volume of sound, the frequency amplifier was used to enhance weak radio signals. By increasing the receiver's performance, long-distance stations could be received.