• Country
• United States of America (USA)

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

• Year
• 1975

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 81748

• • alternative name: Heath Company

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

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 110/220 Volt

• Material
• Metal case

• from Radiomuseum.org
• Model: Frequency Counter IM-4100 - Heathkit Brand, Heath Co.;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 7 x 2 x 10.1 inch / 178 x 51 x 257 mm

• Notes
• Frequency 5 Hz - 30 MHz, sensitivity 15 mV rms. Time base frequency 10 MHz.

• Net weight (2.2 lb = 1 kg)
• 0.1 kg / 0 lb 3.5 oz (0.22 lb)

• Source of data
• -- Original-techn. papers.

• Author
• Model page created by Alexander Küffer. See "Data change" for further contributors.

• Other Models

• Here you find 713 models, 697 with images and 502 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)