F. W. Chesson						   FILE: OLD-NAVY.HTM
Waterbury, CT  06710					    New: 27 May, 1995
							    Rev: 20 May, 2006

    		    Early Naval Communications Equipment   

SE- Type radios were designed by the Steam Engineering Department's Radio 
 Test Shop, from 1910 to 1923, when it became the Naval Research Laboratory. 
 Some sets were adapted from existing National Electric Supply Co. and 
 General Electric sets. These were coded CN- and CG-, to indicate commercial 
 sources.	

Type			Description			      Appx. Date of Use

SE-74	 First Direction Finding set, using Kostler Loop		   1916
SE-75    Compensating Capacitor for SE-74.				   1916
SE-95	 First set with calibrated dial, 30-300 KC (CN-239)   very rare	   1917
SE-143	 Standard Shipboard Receiver, 100-1200 KC  (CN-208)		   1917
SE-515A  6ft DF Coil, direct bearing dial	 	Shore stations
SE-606	 Spark Transmitter, 500-1000 KC			Shipping Board	   1918
CE 606A	    		    500-705 KC		    	      Do.
SE-712   Receiver  like SE-143
SE-838   First VT detector-type receiver
SE-889	 Shipboard Receiver, 30-300 KC
SE-899   Receiver Tuner	(CN)
SE-950	 Aircraft DF Receiver, 120-1000 KC   (First SE aircraft design)    1918
SE-952	 Receiver, 50-600 KC						   1918
SE-995	 DF Receiver, 300-2300 KC   widely used in WW-One	           1917
SE-996	 20" DF Antenna Coil  				Shipboard use
SE-997   20" Coil Housing
SE-998   Shortwave Receiver, 300-3000 KC  U/W SE-995 & SE-1000		   1917
SE-999	 DF Rotary Tone Capacitor

SE-1000  First (two-stage) vacuum tube Audio Amplifier                   c 1914
SE-1012  DF Receiver  300-6000 KC
SE-1060  Spark Transmitter, 500-1000 KC  1 KW		Shipping Board	   1916
SE-1071  Improved SE-838 VT Detector					 c 1914 
SE-1075	 Spark Transmitter, 315-1000 KC  1 KW		Sub chasers	   1914
SE-1100  Aircraft Tube Transmitter, 200 W				   1918
SE-1205  Spark Transmitter, 500-1000 KC  2 KW				   1918
SE-1210  Spark Transmitter,  95-1000 KC  5 KW				   1918
SE-1211  Spark Transmitter,  95-1000 KC  5 KW				   1918
SE-1220  Receiver, 43-1000 KC  (inductive coupling) like SE-143		   1918
SE-1300  Aircraft Spark Transmitter					   1918
SE-1310  Spark Xmitter, 500 W  (used in historic Trans-Atlantic Flight)    1919
SE-1340  Aircraft Radio, modified General Electric CG-1104A		   1918
SE-1370  Improved CG-1140A, using CG-1144 tubes				 c 1920
SE-1375  First Fighter Aircraft Transmitter, 570-750 KC, 20 W		   1922
SE-1380  Aircraft Radio adapted from CG-1134, with CG-916 tubes		 c 1920
SE-1385	 First Scout Aircraft Xmitter, 300-570 KC, 500 W   (later GA)	   1922
SE-1390  Aircraft Radio employing GE CG-4050				   1918
SE-1405  Aircraft DF Receiver, 45-150 KC  3 RF & 2 AF Amps		   1919
SE-1414  Aircraft Receiver, 300-1500 KC	 (Westinghouse & Navy Yard)	   1918
SE-1420  First receiver with integral tube heterodyne circuit, 43-1260 KC  1918
SE-1440* DF Receiver, 250-1200 KC  Autodyne   3-stage internal AF Amp.	   1918
SE-1444	 First Thoriated filament tube, 10 W output at 750 V on plate	 c 1918

SE-1512  36 x 28" DF Coil
SE-1530  Receiver for shore stations, 10-50 KC				   1919
SE-1603  RF Generator (used with RB & DC receivers)			   1919
SE-1605B Aircraft DF Receiver, 130-500 KC	improved SE-1405  (GE)	   1919
SE-1613  Aircraft Receiver, 100-300 KC. 3 RF & 2 AF Amps.		   1919
SE-1615  RF (receiver) Amplifier, 30-100 KC  improved SE-1613		   1919
SE-1617  RF-AF Amplifier Set, 18-43 KC					   1919
SE-1672  DF Compensating Capacitor
SE-1701  Porcelain Insulator, 41" rod with 4-inch "flash-ball one end.	   1919
SE-1762  Compensating Capacitor for use with SE-1440			   1919
SE-1793  Barrage Tuning Unit, 10-50 KC (used with SE-1530 receiver)        1920
SE-1899  Receiver, 12-300 KC			General use		   1920
SE-1950  Radio Compass Tuner, 200-2400 M   (CN) 			   1921
SE-1981  Improved CW-1113 Headset					 c 1920

SE-2000  Later SE-1981 Headset						 c 1920
SE-2001  Antenna Coupling Unit	U/W SE-2302 Receiver			   1923
SE-2133  Ribbed porcelain insulator, 10"		(61013*)	   1923
SE-2188  Pyrex glass, 12.25"						   1923
SE-2193  Pyrex glass tubes, 12 to 32", with metal ends			   1923
SE-2302  LF Receiver   (CN)						   1923
SE-2307	 Heterodyne Frequency Meter, 125-4000 KC			   1924
SE-2907	 Crystal-Controlled Calibrator, 50-8000 KC			   1925
SE-2952  Countermeasures Receiver, 240-650 KC, with special readout	   1929

SE-3119  Power Triode, 75 W						   1926
SE-3124  Power Triode, 750 W						   1927
SE-3382	 Screen-Grid Receiving Tube					   1925
SE-3514  Antenna Switch
SE-3515	 Antenna Leakage Coil
SE-3519	 Test Buzzer
SE-3522  Battery Box?
SE-3524  Antenna Tuner
SE-3525  Tuner
SE-3526	 Coil & Switch
SE-3531  Spark Transmitter  1700-2400 KC		Auxiliary ship set  1925
SE-3542	 Antenna Loading Coil
SE-3547  L-C Tuner
SE-3548  3-Coil Tapped Tuner
SE-3551  Switch Box
SE-3552  Tuner
SE-3570  Dual X-tal Detector Unit
SE-3612  Spark Transmitter  1700-2400 KC		Auxiliary ship set  1925
SE-3634	 Shunt Inductance System					   1921
SE-3635	 Shunt Capacitor Bank  (8 Units)				   1921
SE-3649  Receiver for battleships, 12-375 KC  (like SE-899)		   1921

SE-4005  Aircraft Microphone						   1925
SE-4363	 Receiver Antenna Coupler					   1925
SE-4376  Xtal-Controlled Frequency Standard, 25 KC			   1926
SE-4376A  Xtal-Controlled Frequency Standard, 50 KC			   1926
SE-4376B  Xtal-Controlled Frequency Standard, 200 KC			   1926
SE-4379  Heterodyne Frequency Meter, 4-20 MC				   1927
SE-4389	 Calibrator for above unit       (last known SE- designation) 	   1927

				*	*	*

				 Other Receivers   

CE 827	    	315-1,000	    		    	      
CE 859	    	315-1,000	    		    	Submarines and tugs
CE 861	    	315-1,000	    		    	Mine sweepers
CE 1221	    	315-1,000	    		    	      
CG 1323	    	308, 375, 444, 500, 592	    	Battleships, aircraft spotting
CL 342	    	150-1,000	    		    	      
CL 343	    	95-400	    			    	Battleships
CL 304	    	95-400	    			    	      
CL 344	    	150-1,000	    		    	      
CL 345	    	150-1,000	    		    	      
CM 294	    	96-1,500	    	      			
CM 296	    	1,700-2,400	    	Aux for ships with 2 & 5 kw. arc xmtrs
CM 305	    	150-1,000	    		    	Naval Vessels
CM 306	    	---	    			    	Air Stations
CM 307	    	150-1,000	  Battleships, destroyers, tenders and auxs
CM 858	    	95-1,000	    		    	      
CM 1080	    	500-1,000	    		    	Shipping Board
CN 208	    	100-1,200 KC
CN 240	    	30-300	    	      				
CR 654A	    	315-1,000	    		    	      
CR 655	    	150-1,000	    		    	      
CR 1125	    	95-1,000	    		    	      
CT 1038	    	500  Arc	    	      		    Uniwave Key
CT 1042	    	500  Arc	    	      		         "
CT 1201	    	500  Arc	    	      		         "
CW 1313	    	610, 728, 822, 864, 1027	Battleships, fire control

				 Tube Transmittes  
CW 936
CW 936		 		Short range radio telephone 
CW 938 	    	870-1270 KC    	      AM Modulation    		General Use
    CW 938 modified to include ICW emission.

TA	    	1500-2310	    	CW	    		Intrafleet
TB 	    	610, 728, 822, 864 and 1027  AM Modulation      Fire control
TC	    	588, 592, 630, 708 and 741   CW and AM     Battleship aircraft 
TD	    	109, 167, 308, 333, 375, 500, 592   AM	        Airstations
TE	    	308, 375, 444, 500 and 592.          "	    	Submarines
TF	    	210, 250, 288, 308, 444, 500, 592    "	        Various ships
TG	    	308, 375, 444, 500 and 592	     "	    	Eagle boats
TL 	    	200-600	    			   ---	    	Battleships
TM 	    			---	    	   ---	    	Submarines
TN 	    	---	    	    		    CW	    	Shore stations
TO 	    	500-1500	    		CW, AM	    	Battleships

NOTE.  Models TH, TJ and TK not placed in production. Designation TI not used.


The TA transmitter was of Navy design. A few were made at Washington Navy Yard.
Models TC, TD, TE, TF and TG were basically designed by General Electric Co. 
but most utilized the Navy designed antenna breaker relay.