• Country
• United States of America (USA)

• Manufacturer / Brand
• Heathkit (Brand), Heath Co.; Benton Harbor (MI)

• Year
• 1967–1970

• Category
• Amateur Equipment (Other, but not Key)

• Radiomuseum.org ID
• 95176

• • alternative name: Heath Company

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

• Number of Tubes
• 2

• Valves / Tubes
• 6AU6 6CB6

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Powered by external power supply or a main unit.

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Remote VFO SB-640 - Heathkit Brand, Heath Co.;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 10 x 6.75 x 11 inch / 254 x 171 x 279 mm

• Notes
• Heathkit Remote-VFO SB-640.
  External-/Remote-VFO for the SB-101/102 transceivers, designed to permit split frequency operation.

• Net weight (2.2 lb = 1 kg)
• 2.3 kg / 5 lb 1.1 oz (5.066 lb)

• Price in first year of sale
• 99.00 $

• Source of data
• Heathkit: A Guide to Amateur Radio Products

• Mentioned in
• Funk-Technik (FT) (22/1970, S. 900 / Beschreibung, Schema)

• Other Models

• Here you find 716 models, 700 with images and 506 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Heathkit (Brand), Heath Co.; Benton Harbor (MI)