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.

  Similar to the 720 Series.

  Same manual as 270 hand, 270 pcb, 290, 640. The schematic of all these series is similar.

• 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 151 models, 131 with images and 52 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Bulova Watch Corp.; Woodside (NY)