• Country
• United States of America (USA)

• Manufacturer / Brand
• Fada Radio & Electric Co.; Long Island (NY)

• Year
• 1931

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 18606

• • alternative name: Andrea-Radio || Nater, Henri, Atlanta-Radio; Zürich

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 7

• Valves / Tubes
• 35 27 24 35 24 47 80

• Main principle
• Superhet with RF-stage; ZF/IF 175 kHz; 1 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: 51 Ch= KO - Fada Radio & Electric Co.;

• Shape
• Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).

• Dimensions (WHD)
• 15.3 x 17.5 x 12 inch / 389 x 445 x 305 mm

• Notes

• Bandfilter circuit between RF and mixer stage. Separate oscillator (27). See also The FADA models with the very similar chassis KO-C, which is often written as KOC - so we have to have both in the model name field. There are several versions - depending on the cabinet number. Rider's shows the following for the same schematic: model 51 (KO), 53 and 57 (KO-C). They have 4 tuned RF circuits but only another 3 tuned IF circuits. One is untuned. Stein dates 1932, but it is already in the first Rider's, page 88C (and in volume 1 as FADA 1-30), but not in Gernsback from 1930.
  There is also a completely different late Catalin model 53 (1939).
  
  See also the DC versions: The same DC chassis KO-C serves for model 171 and model 173 (see Rider's schematic).

  Stein "Cathedral & Tombstone Radios" lists 9 tubes for this model.

• Price in first year of sale
• 650.00 SFR

• External source of data
• E. Erb 3-907007-36-0

• Circuit diagram reference
• Die «Thali Schemasammlung» führt das Modell.

• Literature/Schematics (1)
• Rider's Perpetual, Volume 1 = 1931/1934 (1919 to 1931)

• Literature/Schematics (2)
• Cathedral & Tombstone Radios (page 108.)

• Other Models

• Here you find 757 models, 448 with images and 525 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Fada Radio & Electric Co.; Long Island (NY)