• Country
• United States of America (USA)

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

• Year
• 1922

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 234703

• • Brand: Radak

• Number of Tubes
• 3

• Valves / Tubes

• Main principle
• TRF with regeneration; 2 AF stage(s)

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage and/or dry batteries / 6 & 22.5 & 45 or 90 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Regenerative Receiver HR & Two-Stage Amplifier HZ - Clapp-Eastham Co.; Cambridge,

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Notes

• Combination: Regenerative Receiver HR & Two-Stage Amplifier HZ.

   

• Literature/Schematics (1)
• Radio Digest Illustrated, 1922 Jul. 29, p. 7

• Author
• Model page created by Hans-Joachim Korn † 16.11.15. See "Data change" for further contributors.

• 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