220 Intermediate Wave Regenerative Receiver early

• Country
• United States of America (USA)

• Manufacturer / Brand
• Kennedy Co., Colin B.; San Francisco & St.Louis

• Year
• 1921

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 45427

• • alternative name: Colin B. Kennedy Corp.
  • Brand: Globe Trotter

• Picture
• Schematics

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

• Number of Tubes
• 1

• Valves / Tubes
• UV200 or C300

• Main principle
• TRF with regeneration

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Power type and voltage
• Storage and/or dry batteries / 6 & 22-45 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: 220 Intermediate Wave Regenerative Receiver [early] - Kennedy Co., Colin B.; San

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

• Dimensions (WHD)
• 14.5 x 12.5 x 9.5 inch / 368 x 318 x 241 mm

• Notes
• 4 dials; 175 to 3100 meters. Matching LF Amplifier 525.
  The 220 "Intermediate Wave Regenerative Receiver" works on a rather simple principle and the linked text "Regenerative Receiver and Amplifier" shows some details and te differences to other circuits for AM radio reception. The "Intermediate Wave Regenerative Receiver" here has only the AF amplification of the audion.

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

• Mentioned in
• Collector's Guide to Antique Radios 4. Edition

• Literature/Schematics (1)
• William B.Duck Catalog No.16 (1921)

• Other Models

• Here you find 145 models, 77 with images and 69 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Kennedy Co., Colin B.; San Francisco & St.Louis