All Transistor "Comet" 620 Series

• Country
• United States of America (USA)

• Manufacturer / Brand
• Bulova Watch Corp.; Woodside (NY)

• Year
• 1959 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 133877

• Picture
• Schematics

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

• Number of Transistors
• 4

• Semiconductors
• CK766 2N112 2N132 2N138

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 1 x 9 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: All Transistor "Comet" 620 Series - Bulova Watch Corp.; Woodside

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 6 x 3 x 1.5 inch / 152 x 76 x 38 mm

• Notes

• Often called the "Comet" because of the shape of the grille.

  See also models 270 and 290 which have the same schematic.

  Chassis appears to be the same as in 640 Series.

  Similar to the 720 Series.

• Source of data
• Transistor Radios

• Mentioned in
• -- Schematic

• Author
• Model page created by Steven Sostrom. See "Data change" for further contributors.

• Other Models

• Here you find 142 models, 121 with images and 49 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Bulova Watch Corp.; Woodside (NY)