M-47 Dual Wave
- United States of America (USA)
- Manufacturer / Brand
- Lafayette Radio & TV Corp; New York (NY)
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- alternative name: Wholesale Radio
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- Main principle
- Superheterodyne (common); ZF/IF 520 kHz; 2 AF stage(s)
- Tuned circuits
- 8 AM circuit(s)
- Wave bands
- Broadcast plus more than 2 Short Wave bands.
- Power type and voltage
- Alternating Current supply (AC) / 105 - 120 Volt
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- Metal case
- from Radiomuseum.org
- Model: M-47 Dual Wave - Lafayette Radio & TV Corp; New
- Chassis only or for «building in»
- The Rider's schematic 6-10 shows in fact the same schematic for M-47, M-48, M-49 and M-50. This family uses 3 tuned IF filters like the M-39 etc. Oscillator is the tube 56 and an other 56 is a blocking tube. The 55 is the diode detector incl. for AVC. Four different bands are reached by rotary band switching: BC 194 - 555 m, 72.4 - 216 m, 32.3 - 96.2 m and 12 to 33 m. Tone control, calibrated 2-speed dial. Sensivity is better than 2.5 microvolts per meter with 10 kc selectivity. Push-pull output.
The family shows model M-47 Dual-Wave chassis only list price $ 93.50, Lafayette price $ 41.75, M-48 for 220-240 volts 25-40 cycles (100.00) for $ 44.75, M-49 with cabinet (105.00) for $ 46.50 and M-50 for 220-240 volt 25-40 cycles (110.00) for $ 49.00. Both chassis available with dual speakers instead of one for addl. $ 3.75. See details and summaries for the models of this catalog no. 53 for 1933 (Season 1932/33).
- Price in first year of sale
- 42.00 $
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 6 = 1935 and before
- Literature/Schematics (1)
- Lafayette Radio Catalog (Lafayette Catalog Nº 53 for 1933, page 8.)
- Literature/Schematics (2)
- Cathedral & Tombstone Radios (page 160.)
- Other Models
Here you find 1330 models, 1146 with images and 404 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Lafayette Radio & TV Corp; New York (NY)