6515 HYDROGRAPHIC MANUAL PaGE 604 



6515. List of Electric Equipment — Vincent Sono-Radio Buoy 



[The total cost of the electric equipment is about $150 based on 1940 prices. The antenna-coupling housing, antenna, antenna guys, 

 and insulators are listed in 2842(B).] 



Number 

 Description Size required 



Resistor 5,000 ohm J/2 watt 1 



Do - 10,000 ohm H watt 1 



Do 20,000 ohm H watt l 



Do 25,000 ohm H watt 1 



Resistors 50,000 ohm H watt 3 



Resistor 100,000 ohm H watt 1 



Do 150,000 ohm 32 watt 1 



Do 300,000 ohm }2 watt 1 



Do -• 1,000,000 ohm H watt 1 



Resistor, variable potentiometer . 250,000 ohm l 



Condensers, mica 0.0001 mfd 2 



Do_-_ 0.002 mfd.... 6 



Condenser, mica 0.02 mfd 1 



Condensers, paper. -. 1.0 mfd 6 



Condenser, electrolitic, Sprague Ur20 20.0 mfd. 1 



Condenser, variable 10 mmfd 1 



Condensers, variable 50 mmfd 3 



Sockets. - Octal type (8-pin) 6 



Do 4-pin 2 



Transformer, Amertran D82B Line to grid. — 1 



Transformers, Amertran D21B • Interstage 2 



Chokes. 2.5 millihenries 4 



Tubes, Raytheon - Type lvl5 2 



Tube, Raytheon Type 1T5 1 



Do TypelQ5 1 



Do Type OZ... 1 



Batteries, Burgess 40F2 A batteries 3-volt 2 



Batteries, Burgess 21308 B batteries 45-volt.. 2 



Batteries, Burgess 5308... B batteries 45-volt 6 



Battery, Burgess A/30 C battery 45-volt 1 



Battery, Burgess 5156 - C Battery 22,V'2-volt 1 



Crystal and holder Navy type (see 6513) 1 



Hydrophone (See 6563) 1 



Cable connector, for batteries. Male type 8-prong 1 



Cable connectors, for hydrophone and antenna Male type 4-prong 2 



Cable, multicolored - 8-conductor 5 ft. 



Cable, Tyrex Simplex, type SJ, )^2" insulation.. 2-conductor No. 16 65 ft. 



StuflBng tubes for above cable 3 



Tubing, Bakelite ". 3 by IH inches 3 



Wire, solid copper, enameled 1 No. 22. 50 ft. 



Metal box, for housing equipment 12 by 7 by 7 inches 1 



Miscellaneous - -- Screws, bolts, lumber, wire, solder, solder, 



lugs, and fittings. 



652. East Coast Sono-Radio Buoy 



The East Coast sono-radio buoy has evolved by improvements and simphfications 

 from the earhest model. Figure 134 is the circuit diagram of this instrument; the 

 buoy structure is described in 2841. 



The audio amplifier and radio-frequency transmitter are assembled on two 8- by 

 10- by ^{e-inch parallel pieces of Bakelite separated 5}^ inches by four brass pillars, 

 one at each corner. All the component parts of the audio amplifier and radio-frequency 

 transmitter are on the bottom Bakelite plate, the top plate containing the gain control 

 and test circuits. This assembly is secured to the inside of the drum cover by means 

 of four brass posts that fasten to the top Bakelite plate. The control and test circuits 

 can be reached by unscrewing a handhole cover in the lid of the drum. Connections 

 to the hydrophone and antenna circuits are made by means of cables passing through 



