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Construction of master mechanical oscillator for testing seismic recorders and other allied apparatus

An automatic frequency-controlled oscillator and amplifier for driving mechanical vibrators

Published Year

• 1930-1939 (1)
• 1940-1949 (1)

Subject

• Oscillators, Electric (2) *
• Seismometry (1)
• Vibration (1)
• Vibrators (1)

Author

• Irland, George Allison, (1)
• Lee, Frederick W. (1)
• Potter, Elmer Vernon, (1)

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