|Year: 1929/1930||Category: Broadcast Receiver - or past WW2 Tuner|
|Valves / Tubes||9: 226 226 226 226 224 226 245 245 280|
|Main principle||TRF without regeneration; Neutrodyne|
|Tuned circuits||4 AM circuit(s)|
|Wave bands||Broadcast only (MW).|
|Power type and voltage||Alternating Current supply (AC) / 50 to 60 cycles, 105 - 120 Volt|
|Loudspeaker||Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 12.25 inch = 31.1 cm|
|from Radiomuseum.org||Model: 343 Duo-Symphonic - Lafayette Radio & TV Corp; New|
|Shape||Console, Highboy (legs > 50 %).|
|Dimensions (WHD)||27 x 51.25 x 18.25 inch / 686 x 1302 x 464 mm|
|Notes||The catalog 1930 for season 1929/30 names this 9 tube TRF chassis a "Screen-Grid Neutrodyne Neutrodyne-Beers Double Primary". The Lafayette Duo-Symphonic Screen-Grid has a "special Utah Stadium Dynamic-Speaker chassis" producing from 30 to 5000 cycles, linear power detection and local distance switch. Push-pull operation. The same chassis is used for Lafayette Duo-Symphonic models 342, 316, 324, 370, 343, 300, 362, 357, 325, 329, 350 and 352, a Phono-Radio Combination.
The Lafayette Duo Symphonic is in fact using the Wells-Gardner & Co chassis model C or CG, first type. You see this clearly by comparing the Rider's schematic Wells-Gard. page 1-1 and 1-2 (see versions) with the schematic "Wholesale" page 1-2. It is the "Old Type" schematic.
Nevertheless, Lafayette describes this the following way: "The problems of our engineers was not only to build a receiver that would outperform anything in the world, but to build the dame receiver at a price that would bring it within reach of the average home."
The list price for the model 343 Duo-Symphonic is $ 194.50 without tubes/aerial equipment or $ 219.25 with - but Lafayette puts a price of $ 95.55 or $ 107.39 all inclusive. See details and summaries for the models of this catalog.
|Price in first year of sale||107.00 $ !|
|Literature/Schematics (1)||Lafayette Radio Catalog (Wholesale Radio Service Co. Inc. catalog 1930 for 1929/30, page 18 - 31.)|
Model page created by Ernst Erb. See "Data change" for further contributors.
All listed radios etc. from Lafayette Radio & TV Corp; New York (NY)
Here you find 1289 models, 1094 with images and 392 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.