BIMINI HYDROPHONE INSTALLATION 

 LABORATORY EQUIPMENT 



CHANNEL 'A' 



CHANNEL 'B' 



I CABLE 



MATCHING 

 [T RANSFORMER 



I 



i 



AMPLIFIER 

 VARIABLE GAIN 



TAPE RECORDER 

 AMPLIFIER 



CHART 

 RECORDER 



CHART 

 RECORDER 



DEEP 

 HYDROPHONE 



HYDROPHONE 

 PREAMPLIFIER 



ICABLE I 



OSCILLATOR 



METER and 

 ATTENUATOR 



MATCHING 

 TRANSFORMER 



I 



i 



AMPLIFIER 

 [VARIABLE GAIN 



FORK CONTROLLED! 

 CAPSTAN SUPPLY I 



TAPE RECORDER 

 AMPLIFIER 



TAPE RECORDER 

 TWO CHANNEL 



SPEAKER 



i 



K 



SPEAKER 



AMPLIFIER 

 TWO CHANNEL 



CHART 

 RECORDER 



CHART 

 RECORDER 



FIG. a 



