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- Variable Condenser, circa 1930 -
- circa 1930
- Collections - Artifact
Variable Condenser, circa 1930
- Variable Condenser, 1914-1918 -
- 1914-1918
- Collections - Artifact
Variable Condenser, 1914-1918
- Faradon Variable Mica Condenser, Model UC-1819, 1920-1925 - Early radios containing vacuum tubes needed both AC (alternating current) and DC (direct current) electrical power to operate. Condensers (also known as capacitors) allow alternating electrical currents to pass while blocking direct currents. Condensers can block, pass, filter and tune the various currents of the radio.
- 1920-1925
- Collections - Artifact
Faradon Variable Mica Condenser, Model UC-1819, 1920-1925
Early radios containing vacuum tubes needed both AC (alternating current) and DC (direct current) electrical power to operate. Condensers (also known as capacitors) allow alternating electrical currents to pass while blocking direct currents. Condensers can block, pass, filter and tune the various currents of the radio.
- Variable Capacitor, 1914-1920 -
- 1914-1920
- Collections - Artifact
Variable Capacitor, 1914-1920
- Variable Capacitor, 1914-1920 -
- 1914-1920
- Collections - Artifact
Variable Capacitor, 1914-1920
- Crosley Variable Condenser, Model C, 1921-1922 -
- 1921-1922
- Collections - Artifact
Crosley Variable Condenser, Model C, 1921-1922
- Variable Condenser, Used by Alfred N. Goldsmith, 1920-1930 - Condensers (also known as capacitors) allow alternating electrical currents to pass while blocking direct currents. Condensers can block, pass, filter and tune the various currents of the radio. This device was likely used by Alfred Goldsmith for his experiments while he was the Research Director of Radio Corporation of America. Goldsmith aided in the development of the first commercial radio-phonograph.
- 1920-1930
- Collections - Artifact
Variable Condenser, Used by Alfred N. Goldsmith, 1920-1930
Condensers (also known as capacitors) allow alternating electrical currents to pass while blocking direct currents. Condensers can block, pass, filter and tune the various currents of the radio. This device was likely used by Alfred Goldsmith for his experiments while he was the Research Director of Radio Corporation of America. Goldsmith aided in the development of the first commercial radio-phonograph.
- Marconi Variable Condenser, Type SE-61, 1918 -
- 1918
- Collections - Artifact
Marconi Variable Condenser, Type SE-61, 1918
- Faradon Variable Condenser, Model UC-1831, 1920-1923 - Early radios containing vacuum tubes needed both AC (alternating current) and DC (direct current) electrical power to operate. Condensers (also known as capacitors) allow alternating electrical currents to pass while blocking direct currents. Condensers can block, pass, filter and tune the various currents of the radio.
- 1920-1923
- Collections - Artifact
Faradon Variable Condenser, Model UC-1831, 1920-1923
Early radios containing vacuum tubes needed both AC (alternating current) and DC (direct current) electrical power to operate. Condensers (also known as capacitors) allow alternating electrical currents to pass while blocking direct currents. Condensers can block, pass, filter and tune the various currents of the radio.
- Murdoch Variable Condenser, circa 1915 -
- circa 1915
- Collections - Artifact
Murdoch Variable Condenser, circa 1915