• Country
• United States of America (USA)

• Manufacturer / Brand
• RCA (RCA Victor Co. Inc.); New York (NY)

• Year
• 1924

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 54289

• • alternative name: RCA Manufacturing || Victor Talking Machine

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

• Number of Tubes
• 2

• Valves / Tubes
• WD11 WD11

• Main principle
• TRF with regeneration; 1 AF stage(s)

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / . Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: Radiola III AR-805 Type RI - RCA RCA Victor Co. Inc.; New

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 200 x 150 x 170 mm / 7.9 x 5.9 x 6.7 inch

• Notes

• Battery setup:
  
  "A" battery for filament heating: Four to six 1.5 volt dry cells connected in parallel. Good batteries are recommended, having approximate dimensions of 2.5 inches diameter by 6 inches high. A two volt (one cell, lead type) storage battery may be used instead.
  
  "B" battery for supplying power to the plate circuits, consisting either of two 22.5 volt plate batteries connected in series, or one 45 volt plate battery.
  
  "C" battery for producing a negative grid potential, consisting of one 1.5 volt dry cell. This may be conveniently the same as one of the cells of the "A" battery and this is recommended.
  
  The WD11 were often replaced by UX199, using adaptors. 60 mA from 3 V made only 0.18 W per UX199, while the WD11 drew 0.25 A from a 1.5 V battery = 0.375 W, practically twice as much. The price was the same: 6.50$.
  Supplementary Amp.: Radiola Balanced Amplifier.

• Net weight (2.2 lb = 1 kg)
• 1.7 kg / 3 lb 11.9 oz (3.744 lb)

• Price in first year of sale
• 35.00 $

• External source of data
• Ernst Erb

• Source of data
• Radio Collector`s Guide 1921-1932

• Mentioned in
• Radio Manufacturers of the 1920's, Vol. 3

• Literature/Schematics (1)
• -- Original-techn. papers. (Users Manual)

• Literature/Schematics (2)
• Radio Broadcast, Mar. 1924. p. 443

• Literature/Schematics (3)
• Le Guide du Collectionneur TSF Biraud/Foster, Vol. II (page 320)

• Other Models

• Here you find 4961 models, 2931 with images and 4018 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from RCA (RCA Victor Co. Inc.); New York (NY)