1564A General Radio Audio Analyzer

Used

The General Radio 1564A Sound/Vibration Analyzer operates in the frequency range of 2.5 Hz to 25 kHz in four decades. 25 Mohms input impedance in parallel with 80 pF. Input range of 0.3 mV to 30 V full scale. Output: 1 V open circuit. Three scales: 0 to 3 V, 0 to 10 V, -6 to +10 dB. AC or battery operated. Unit comes with 2 microphones.

More Information
ManufacturerGeneral Radio
ConditionUsed
Frequency25 kHz
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