110 Universal 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
• 45428

• • 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

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: 110 Universal Regenerative Receiver [early] - Kennedy Co., Colin B.; San

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

• Dimensions (WHD)
• 19.5 x 12.5 x 9.5 inch / 495 x 318 x 241 mm

• Notes

• 4 dials, Range: 175 to 25000 meters. Matching Amplifier 525 available.
  The 110 "Universal Regenerative Receiver" works on a rather simple principle and the linked text "Regenerative Receiver and Amplifier" shows some details and the differences to other circuits for AM radio reception. The "Universal Regenerative Receiver" and the "220 Intermediate Wave Regenerative Receiver", both from Kennedy, have only the AF amplification of the audion.

  The posted Kennedy Type 110 schematic is  for the late-1922 "St. Louis" version. The early Type 110 "San Francisco" versions had a Plate Potentiometer circuit so the detector plate voltage could be adjusted. This is probably why the feature was dropped when all Kennedy manufacturing was moved to St. Louis in mid-1922. Henry Rogers - Radio Boulevard, Western Historic Radio Museum has more detailed information on this model.

  Early models made in San Francisco had a Weston model 301 ammeter to measure filament current. In later version this was changed to a voltmeter. In later versions an addition factory installed single wire rheostat was installed to help imporve filament control.

• Price in first year of sale
• 250.00 $

• External source of data
• Ernst Erb

• 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)

• Literature/Schematics (2)
• Radio Broadcast, June 1922, page 187

• Other Models

• Here you find 145 models, 76 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