• Country
• United States of America (USA)

• Manufacturer / Brand
• Clapp-Eastham Co.; Cambridge, MA

• Year
• 1923

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 35290

• • Brand: Radak

• Number of Tubes
• 5

• Valves / Tubes

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown); 2 AF stage(s)

• Tuned circuits
• 3 AM circuit(s)

• Wave bands
• Broadcast only (MW).

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

• Loudspeaker
• Horn

• Material
• Wooden case

• from Radiomuseum.org
• Model: Radak C64 [.] - Clapp-Eastham Co.; Cambridge,

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

• Notes
• Three dials (primary tuning control knobs). "The set iscomplete, containing as it does a built-in Loud Speaker with wooden phonograph type horn, inside compartments for "B" batteries and "A" batteries if it is desired to use dry cell tubes. It provides two stages of tuned radio frequency amplification, tube detector and two stages of audio-frequency amplification". Amstrong Regenerative Patent 1113149. Price without tubes or batteries.

• Price in first year of sale
• 220.00 $

• External source of data
• Ernst Erb

• Source of data
• - - Manufacturers Literature

• Mentioned in
• The Radio Collector's Directory and Price Guide 1921 - 1965 (Radio News March1924, p.1357)

• Literature/Schematics (1)
• Radio Manufacturers of the 1920s, Vol 1

• Other Models

• Here you find 130 models, 106 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Clapp-Eastham Co.; Cambridge, MA