| Challenger Chassis   | 
			1929/30  | 
			Radio | 
			8 - 224 | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| Duo Symphonic 1930 Chassis and LS [226] | 
			1929/30  | 
			Radio | 
			9 - 226 | 
			3 | 
			  | 
			1S | 
			  | 
			  | 
		
	
		
		
			| Duo Symphonic 1930 Chassis and LS [CX326] | 
			1929/30  | 
			Radio | 
			9 - CX326 | 
			3 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| Trio Chassis   | 
			1929/30  | 
			Radio | 
			8 - 224 | 
			3 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| Trio Radio-Phonograph   | 
			1929/30  | 
			Radio | 
			8 - 224 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 10 Challenger   | 
			1929/30  | 
			Radio | 
			8 - 224 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 18 Challenger   | 
			1929/30  | 
			Radio | 
			8 - 224 | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 20 Challenger   | 
			1929/30  | 
			Radio | 
			8 - 224 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 30 Challenger   | 
			1929/30  | 
			Radio | 
			8 - 224 | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 40 Challenger   | 
			1929/30  | 
			Radio | 
			8 - 224 | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 85 Challenger   | 
			1929/30  | 
			Radio | 
			8 - 224 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 200 Trio   | 
			1929/30  | 
			Radio | 
			8 - 224 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 210 Trio   | 
			1929/30  | 
			Radio | 
			8 - 224 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 218 Trio   | 
			1929/30  | 
			Radio | 
			8 - 224 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 260 Trio   | 
			1929/30  | 
			Radio | 
			8 - 224 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 285 Trio   | 
			1929/30  | 
			Radio | 
			8 - 224 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 300 Duo-Symphonic   | 
			1929/30  | 
			Radio | 
			9 - 226 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 316 Duo-Symphonic   | 
			1929/30  | 
			Radio | 
			9 - 226 | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 324 Duo-Symphonic   | 
			1929/30  | 
			Radio | 
			9 - 226 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 325 Duo-Symphonic   | 
			1929/30  | 
			Radio | 
			9 - 226 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 329 Duo-Symphonic   | 
			1929/30  | 
			Radio | 
			9 - 226 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 342 Duo-Symphonic   | 
			1929/30  | 
			Radio | 
			9 - 226 | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 343 Duo-Symphonic   | 
			1929/30  | 
			Radio | 
			9 - 226 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 350 Duo-Symphonic   | 
			1929/30  | 
			Radio | 
			9 - 226 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 352 Duo-Symphonic   | 
			1929/30  | 
			Radio | 
			9 - 226 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 357 Duo-Symphonic   | 
			1929/30  | 
			Radio | 
			9 - 226 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 362 Duo-Symphonic   | 
			1929/30  | 
			Radio | 
			9 - 226 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 370 Duo-Symphonic   | 
			1929/30  | 
			Radio | 
			9 - 226 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| Supertone   | 
			1929–38  | 
			Crystal | 
			 | 
			1 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| AC-524   | 
			1930  | 
			Radio | 
			5 - 224 | 
			 | 
			 | 
			  | 
			  | 
			  | 
		
	
		
		
			| Great Duo Symphonic   | 
			1930  | 
			Radio | 
			8 - 224 | 
			 | 
			 | 
			1S | 
			  | 
			  | 
		
	
		
		
			| C-2 Super-Heterodyne Radio-Phono comb.  | 
			1930/31  | 
			Radio | 
			9 - 224 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| Duo Symphonic Junior 1931   | 
			1930/31  | 
			Radio | 
			7 - 224 | 
			1 | 
			  | 
			1S | 
			  | 
			  | 
		
	
		
		
			| EM-20   | 
			1930/31  | 
			Radio | 
			7 | 
			3 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| Pre-Selector  [1930] | 
			1930/31  | 
			Radio | 
			7 - 224 | 
			4 | 
			  | 
			2S | 
			  | 
			  | 
		
	
		
		
			| Pre-Selector Phono Radio   | 
			1930/31  | 
			Radio | 
			7 - 224 | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| S-204 Super-Heterodyne   | 
			1930/31  | 
			Radio | 
			9 - 224 | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| Super-Het SW Converter   | 
			1930/31  | 
			Converter | 
			3 - 227 | 
			2 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| Wideworld TRF for Short Waves   | 
			1930/31  | 
			Radio | 
			6 - 224 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 8 Tube Duo Symphonic  [new] | 
			1930/31  | 
			Radio | 
			8 - 224 | 
			4 | 
			  | 
			4S | 
			  | 
			  | 
		
	
		
		
			| 9 Tube Super-Heterodyne   | 
			1930/31  | 
			Radio | 
			9 - 224 | 
			3 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 45 Pre-Selector (PS45)   | 
			1930/31  | 
			Radio | 
			7 - 224 | 
			3 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 52 New Duo Symphonic Battery Receiver  | 
			1930/31  | 
			Radio | 
			5 - UY224 | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 101 Duo Symphonic  [new] | 
			1930/31  | 
			Radio | 
			8 - 224 | 
			2 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 102 Duo Symphonic  [new] | 
			1930/31  | 
			Radio | 
			8 - 224 | 
			3 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 103 Duo Symphonic  [new] | 
			1930/31  | 
			Radio | 
			8 - 224 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 104 Duo Symphonic  [new] | 
			1930/31  | 
			Radio | 
			8 - 224 | 
			3 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 105 Duo Symphonic Radio-Phono [new] | 
			1930/31  | 
			Radio | 
			8 - 224 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 150 Duo Symphonic  [new] | 
			1930/31  | 
			Radio | 
			8 - 224 | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 160 Duo Symphonic  [new] | 
			1930/31  | 
			Radio | 
			8 - 224 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 162 Duo Symphonic  [new] | 
			1930/31  | 
			Radio | 
			8 - 224 | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 177 Duo Symphonic  [new] | 
			1930/31  | 
			Radio | 
			8 - 224 | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 219 Duo Symphonic Radio-Phono [new] | 
			1930/31  | 
			Radio | 
			8 - 224 | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 245 Loftin White   | 
			1930/31  | 
			Ampl/Mixer | 
			3 - 224 | 
			2 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 250 Loftin White   | 
			1930/31  | 
			Ampl/Mixer | 
			3 - 24 | 
			2 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 250 Super-Heterodyne   | 
			1930/31  | 
			Radio | 
			9 - 224 | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 304J Junior Duo Symphonic   | 
			1930/31  | 
			Radio | 
			7 - 224 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| Super-Heterodyne unknown model  | 
			1930/31 ? | 
			Radio | 
			 | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| B, 6-Tube Duo Symphonic chassis Ch= B  | 
			1931  | 
			Radio | 
			6 - 224 | 
			3 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| C-36 Monarch Mantel   | 
			1931  | 
			Radio | 
			6 - 224S | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| E, 8-tube Superhet-chassis Ch= E  | 
			1931  | 
			Radio | 
			8 - 224S | 
			2 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| EC, 8-tube Superhet Ch= E  | 
			1931  | 
			Radio | 
			8 - 224S | 
			3 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| EM, 8-tube Superhet Ch= E  | 
			1931  | 
			Radio | 
			8 - 224S | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| G, 8-Tube Duo Symphonic chassis Ch= G  | 
			1931  | 
			Radio | 
			8 - 224 | 
			3 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| G-82 Duo Symphonic Ch= G  | 
			1931  | 
			Radio | 
			8 - 224 | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| G-84 Duo Symphonic Ch= G  | 
			1931  | 
			Radio | 
			8 - 224 | 
			6 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| G-86 Duo Symphonic Ch= G  | 
			1931  | 
			Radio | 
			8 - 224 | 
			6 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| P GEM Ch= P  | 
			1931  | 
			Radio | 
			6 - 224 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 62-B Duo Symphonic 6-tube TRF Ch= B  | 
			1931  | 
			Radio | 
			6 - 224 | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 64-B Duo Symphonic 6-tube TRF Ch= B  | 
			1931  | 
			Radio | 
			6 - 224 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 66-B Duo Symphonic 6-tube TRF Ch= B  | 
			1931  | 
			Radio | 
			6 - 224 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 68-B Duo Symphonic 6 tube TRF Ch= B  | 
			1931  | 
			Radio | 
			6 - 224 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| Tru Test   | 
			1931 ? | 
			Radio | 
			5 | 
			 | 
			 | 
			  | 
			  | 
			  | 
		
	
		
		
			| C-7, 7 Tube Duo-Symphonic   | 
			1931/32  | 
			Radio | 
			7 - 35 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| C10, 10 Tube Duo-Symphonic   | 
			1931/32  | 
			Radio | 
			10 - 35 | 
			6 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| Challenger   | 
			1931/32  | 
			Car Radio | 
			4 - 236 | 
			1 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| CL-7 Special   | 
			1931/32  | 
			Radio | 
			7 - 224 | 
			2 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| Commander   | 
			1931/32  | 
			Car Radio | 
			6 - 224 | 
			1 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| De Luxe Auto Radio   | 
			1931/32  | 
			Car Radio | 
			6 - 238 | 
			1 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| K-5 Mighty Atom   | 
			1931/32  | 
			Radio | 
			5 - unknown_Tube | 
			2 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| K-52 Mighty Atom   | 
			1931/32  | 
			Radio | 
			5 - unknown_Tube | 
			2 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| LEM-69   | 
			1931/32  | 
			R-Player | 
			 | 
			1 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| LG-DC Lafayette Gem   | 
			1931/32  | 
			Radio | 
			6 - 236 | 
			2 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| LM-5 Midget   | 
			1931/32  | 
			Radio | 
			5 - 235 | 
			2 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| LT-6   | 
			1931/32  | 
			Radio | 
			6 - 224 | 
			2 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| S-5 Trutest   | 
			1931/32  | 
			Radio | 
			5 - 551 | 
			2 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| Tru Test 7 Tubes   | 
			1931/32  | 
			Radio | 
			7 - 35 | 
			2 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| Wide World SW Receiver  [AC] | 
			1931/32  | 
			Radio | 
			6 - 235 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| Wide World SW Receiver  [Battery] | 
			1931/32  | 
			Radio | 
			5 - 232 | 
			2 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 5PH Duo-Symphonic (Phono)   | 
			1931/32  | 
			Radio | 
			5 | 
			2 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 7PH Duo-Symphonic (Phono)   | 
			1931/32  | 
			Radio | 
			7 - 35 | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 8 Tube Receiver Kit   | 
			1931/32  | 
			Kit | 
			8 | 
			2 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 10-C, 10 Tube Duo-Symphonic  [early] | 
			1931/32  | 
			Radio | 
			10 - 35 | 
			4 | 
			  | 
			3S | 
			  | 
			  | 
		
	
		
		
			| 10-C, 10 Tube Duo-Symphonic  [late] | 
			1931/32  | 
			Radio | 
			10 - 35 | 
			9 | 
			  | 
			1S | 
			  | 
			  | 
		
	
		
		
			| 20 Tru Test 5 tube Midget   | 
			1931/32  | 
			Radio | 
			5 - 224 | 
			2 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 70-C 7 Tube Duo-Symphonic   | 
			1931/32  | 
			Radio | 
			7 - 35 | 
			4 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 70M 7 Tube Duo-Symphonic   | 
			1931/32  | 
			Radio | 
			7 - 35 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 101, 10 Tube Duo-Symphonic   | 
			1931/32  | 
			Radio | 
			10 - 35 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 102, 10 Tube Duo-Symphonic   | 
			1931/32  | 
			Radio | 
			10 - 35 | 
			5 | 
			  | 
			  | 
			  | 
			  | 
		
	
		
		
			| 162 7 Tube Duo-Symphonic   | 
			1931/32  | 
			Radio | 
			7 - 35 | 
			5 | 
			  | 
			  | 
			  | 
			  |