• Country
• United States of America (USA)

• Manufacturer / Brand
• Crosley Radio Corp.; Cincinnati (OH)

• Year
• 1924

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 185896

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

• Number of Tubes
• 2

• Valves / Tubes

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Wooden case

• from Radiomuseum.org
• Model: Special 51S - Crosley Radio Corp.;

• Shape
• Tablemodel, slant panel.

• Dimensions (WHD)
• 12.5 x 8.5 x 12 inch / 318 x 216 x 305 mm

• Notes

• This is the Crosley Model 51S Special. It has 3 knobs and 2 tubes. It has a different front panel from the Crosely 51SD Special Deluxe.

  Operating instructions (see tech.info) show a choice of completely different tube configurations:
  2 x UV201A needs a 6 v storage "A" Battery
  2 x WD12 uses 1.5 v dry "A" Battery
  2 x UV199 requires 3 x 1.5 v (= 4.5 v) dry batteries plus socket adaptors.
  Same is valid for the Cunningham equivalents.
  
  Later models could also use the following combinations:
  2 x UX199;
  2 x UX201A;
  and for increased output power:
  UX201A and UX112A
  UX201A and UX171A;
  UX199 and UX120;
  
  Later models have a terminal to connect a "C" bias battery in case of operation with an output tube of increased power: UX112A (max0.2 Watt); UX171A (max.0.7 Watt); UX120 (max.0.11 Watt).

• Net weight (2.2 lb = 1 kg)
• 4 lb (4 lb 0 oz) / 1.816 kg

• Mentioned in
• Collector's Guide to Antique Radios (7th Edition) (page 66)

• Author
• Model page created by Jon Kummer. See "Data change" for further contributors.

• Other Models

• Here you find 1773 models, 1042 with images and 1258 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Crosley Radio Corp.; Cincinnati (OH)