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.