d. 70 W, , a. c, power for 

 heater transformers Jind 

 monitor fan. 



2. Output 



a. Video signal, 2 volts peak- 

 to-pejik, 73 ohms impedance, 

 black negative polarity. 



C. Power supply 



1. Input 



a. A, C. voltage, 105-120 

 volts. 



b. A. C. power, 600 watts. 



c. Frequency, 50-400 CPS. 



2. Output 



a. D. C. power (regulated), 

 350 volts at 520 ma. and 

 -105 volts at 1 ma. 



VI. Cables 



A. Camera to camera-control unit 



1. Size: 0.81 inches diameter - 

 1,000 feet maximum. 



2. Conductors: 28: 4, #18A.W.G.; 

 21, #22 A.W.G. ; 3 coaxial, 51 

 ohm impedance. 



3. Jacket: Neoprene. 



4. Weight: approximately 0.5 lbs. 

 per foot. 



5. Pressure resistance: 445 p.s.i. 



minimum. 



Power supply to camera-control unit 



1. Size: 0.81-inch diameter, 

 length 12 feet. 



2. Conductors: 11. 



3. Jacket: Neoprene. 

 Camera-control unit to monitor 



1. Type: coaxial, 73 ohms. 



2. Length: 100 feet (500 feet, 

 maximum). 



Camera connector: "Twist on", 

 watertight (455 p.s.i. minimum 

 pressure resistance). 



FIGURE A-1. --SPECIAL WATERTIGHT CONNECTOR DEVELOPED FOR USE WITH UNDERWATER TELEVISION. 



18 



