Audio Analyzer
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Catalog Number: 74-30-1
The Audio Analyzer has two circuits to aid the electrophysiological investigator searching for cells. For extracellular recordings, EDG, or EEG, the Audio Analyzer provides an audio amplifier circuit with adjustable frequency response and wide volume range. These features permit "tuning in" to the correct frequency signal. A noise filter is included for reducing the hash from the signal.
The Audio Analyzer converts extracellular or intracellular signals into audio frequencies. Features include:
Three switchable inputs
Audio Mode with adjustable frequency response and noise filter
VCO Mode, frequency of tone varies proportionally to input level
Built-in power supply
The Audio Analyzer has two circuits to aid the electrophysiological investigator searching for cells.
For monitoring extracellular recordings, the Audio Analyzer provides an audio amplifier circuit with adjustable frequency response and wide volume range. These features permit tuning to the correct frequency signal. A noise filter is included for reducing the baseline hash from the signal.
For monitoring intracellular potentials or for EEG conditioning studies, the instrument has a VCO mode (Voltage Controlled Oscillator). It produces a tone (approximately 500Hz with zero voltage input); the frequency of the tone is proportional to the input level. The instrument is sensitive enough to distinguish millivolt changes.
Input Impedance: 500Kohms
Input Range: +10V
Frequency Response (AUDIO): 10Hz - 50KHz
Frequency( Range (VCO): Approximately 250Hz to 1000Hz (500Hz with zero voltage input)
Frequency/Voltage Slope (VCO): Adjustable from 35-10,000 Hz/input Volt
External Speaker: Jack provided
Inputs: 3 provided, switch selectable
Power Requirements: 115-230VAc, 50-60Hz
Line Fuse: Dual Fused; 1 Amp at 115vac, 1/2A at 230vac
Dimensions: 2.75" x 7" x 9" (7 x 17.8 x 22.9 cm); 4 lb.,(1.8 kg)
74-30-1 Audio Analyzer
