• Country
• United States of America (USA)

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

• Year
• 1966–1976

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 73819

• • alternative name: Heath Company

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

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: HDP-21A - Heathkit Brand, Heath Co.;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 0 x 270 x 0 mm / 0 x 10.6 x 0 inch

• Notes
• Heathkit High impedance dynamic desktop microphone HDP-21A with PTT for HAM (amateur radio) purposes. Matches the Heathkit SB-series.
  Produced by Electro-Voice for HEATH Comp.

• Net weight (2.2 lb = 1 kg)
• 0.9 kg / 1 lb 15.7 oz (1.982 lb)

• Price in first year of sale
• 30.00 $

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

• Mentioned in
• Heathkit: A Guide to Amateur Radio Products

• Other Models

• Here you find 715 models, 699 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)