13. Batteries, dry, 45 V, plate supply Burgess 

 5308 or Eveready 482, 8 batteries per set — 

 15 sets. 



14. Batteries, dry, 4.5 V, relay circuit, Bur- 

 gess 232 or Eveready 771, 1 battery per set — 

 15 sets. 



15. Receptacle, Transmitter power input, 

 AN-3102-A-20-24S— 5 each. 



16. Plug, Transmitter power input, AN- 

 SI 08-A-20-24P— 5 each. 



17. Clamp, Transmitter power input, AN- 

 97-3057-12-6—5 each. 



18. Receptacle, Sequence Switch, AN-3102- 

 A-12S-3S— 10 each. 



19. Plug, Sequence Switch, AN-3106-A-12S- 

 3P— 10 each. 



20. Clamp, Sequence Switch, AN-3057-4— 

 10 each. 



21. Receptacle, Antenna, AN-3102-8S-1P— 



22. Plug, Antenna, AN-3106-A-8S-1S— 5 

 each. 



23. Clamp, Antenna, AN-3057-3— 5 each. 



24. Receptacle, Transmitter, battery box, 

 AN-3 1 02-A-20-24S— 5 each . 



25. Plug, Transmitter, battery box, AN- 

 3106-A-20-24P— 5 each. 



26. Clamp, Transmitter, battery box, AN- 

 97-3057-12-6—5 each. 



27. Receptacle, Sequence Switch, battery 

 box, AN-3102-A-12S-3S— 5 each. 



28. Plug, Sequence Switch, battery box, 

 AN-3106-A-12S-3P— 5 each. 



29. Clamp, Sequence Switch, battery box, 

 AN-3057-4— 5 each. 



30. Receptacle, Identification Lights, bat- 

 tery box, AN-3102-A-12S-3S— 5 each. 



31. Plug, Identification Lights, battery box, 

 AN-3106-A-12S-3P— 5 each. 



32. Clamp, Identification Lights, battery 

 box, AN-3057-4— 5 each. 



33. Lamps, Identification Lights, Mazda 

 No. 40—48 each. 



34. Fluted globe, fisherman's buoy light, 

 color, red — 5 each, color, white — 5 eaqh. 



35. Tube tester — 1 each. 



36. Battery Charger, Mallory 6V AC 4-6 

 Amp. — 2 each. 



37. Cable Vulcanizer, complete, Joy Mfg. 

 Co. — 1 each. 



38. Receptacle, watertight, with cover and 

 plug, brass, Lovell — 6 eacli. 



39. Wu-e, hookup. No. 16—100 feet. 



40. Tape, "Scotch Electric"— 50 rolls. 



41. Tape, rubber, Navy Stock G 17-T- 

 1445—50 rolls. 



42. Silica Gel, dehydrant — 50 pounds. 



43. Waterproofing compound, D-4, Dow 

 Chemical Co. — 10 tubes. 



44. Cable clamps, %", %" , and M" — 

 200 each. 



45. Shackles, )\" , %", and K"— 200 each. 



46. Thimbles, M", %", Ke", and }i"—lOO 

 each. 



47. Paint, Chrome yellow — 5 gallons. 



48. Flag, Baker, Navy Stock G 5-F-369— 

 10 each. 



49. Rubber tubing, Y," ID, %" OD— 15 

 feet. 



50. Funnel, plastic — 2 each. 



51. Chronograph tape, reels, as required by 

 length of survey. 



52. Tools, hand, complete set. 



53. Radiotelephone, ship to shore — 1 each. 

 9-56 Operating and Instruction Manuals. — 



The following listed operating and instruction 

 manuals are of assistance when operating and 

 maintaining the Roberts Radio Current Meter 

 components. 



1. Roberts Radio Current Meter, Mod. II, 

 Operating Manual — Department of Com- 

 merce, Washington, D. C, 1950. 



2. Operating and Maintenance Instructions 

 for Direct Heat Type Cable Vulcanizer — Joy 

 Manufacturing Co., St. Louis 10, Mo. 



3. Instruction Manual Triplett FM Signal 

 Generator, Model 3433— Triplett Electrical 

 Instrument Co., Bluffton, Ohio. 



4. Instruction Manual Triplett Model 630 

 Volt-Ohm-Milliammeter. 



5. Instruction Manual National HRO-50-1 

 Radio Receiving Manual — National Co. Inc., 

 Maiden, Mass. 



6. Care of Amglo Constant Speed DC Mo- 

 tors — Amglo Corp., Chicago, 111. 



7. Specifications of the Materials and Con- 

 struction Details of the Sequence Switch — 

 U. S. N. H. O. 



8. General Specifications, Roberts Radio 

 Current Meter Model II— U. S. N. H. 0. 



9. Specifications, Roberts Radio Current 

 Buoy, 120- and 80-inch models— U. S. N. H. O. 



id. Instructions, Type 161 Radio Trans- 

 mitter — Rixon Electronics, Inc., Kensington, 

 Md. 



11. Instructions, Type 162 Test Oscillator — 

 Rixon Electronics, Inc., Kensington, Md. 



9-57 Assembling the Roberts Radio Cur- 

 rent Meter for Operation. — The current meters 

 are suspended at the desired depth below the 

 buoy as shown in figure 9-5. The whip an- 

 tenna is rigged on the buoy and the batteries 

 and the crystal inserted in the transmitter. 

 The system is then checked for operation with 

 the power supply and the transmitter tuned to 



98 



H. O. 607 



