• Country
• United States of America (USA)

• Manufacturer / Brand
• Hammarlund Mfg. Co. Inc.; New York, NY

• Year
• 1933–1935

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 133481

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

• Number of Tubes
• 8

• Valves / Tubes
• 57 58 58 58 57 58 2A5 80

• Main principle
• Superheterodyne (common); ZF/IF 465 kHz

• Wave bands
• Short Wave (SW only)

• Power type and voltage
• Alternating Current supply (AC)

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Comet Pro [Var. 4 ] - Hammarlund Mfg. Co. Inc.; New

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

• Notes

• The Hammarlund Comet Pro (Later model, Var. 4 according to Communications Receivers by Moore) covers 1.5 to 20 MHz in four bands in AM and CW (BFO).

  In contrast to earlier models, a crystal filter was added, along with a crystal switch and phasing control on front panel.

• Mentioned in
• Communications Receivers (4th edition page 59)

• Literature/Schematics (1)
• Short Wave Craft, June 1936, Page 99

• Author
• Model page created by Martin Bösch. See "Data change" for further contributors.

• Other Models

• Here you find 145 models, 93 with images and 58 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hammarlund Mfg. Co. Inc.; New York, NY