Radiola 21

• Country
• United States of America (USA)

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

• Year
• 1929

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 54640

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

• Picture
• Schematics

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

• Number of Tubes
• 5

• Valves / Tubes
• UX222 UX222 UX112A UX112A UX112A or UX171A

• Main principle
• TRF with regeneration; Screengrid 1926-1935

• Tuned circuits
• 3 AM circuit(s)

• 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: Radiola 21 - RCA RCA Victor Co. Inc.; New

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 20.5 x 10.5 x 10 inch / 521 x 267 x 254 mm

• Notes
• Some models use the later 230, 231 and 232 tubes and RCA provided instructions on how to make this upgrade in the RCA Victor Service Notes for 1929-1930 Red-book.

• Net weight (2.2 lb = 1 kg)
• 27 lb (27 lb 0 oz) / 12.258 kg

• Price in first year of sale
• 69.00 $

• External source of data
• Ernst Erb

• Source of data
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Circuit diagram reference
• Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

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

• Literature/Schematics (1)
• RCA Victor Service Notes "Red Book" Series

• Other Models

• Here you find 5118 models, 3224 with images and 4152 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)