• Country
• United States of America (USA)

• Manufacturer / Brand
• Hallicrafters, The; Chicago, IL and Arlington/Grand Prairie, TX

• Year
• 1939–1945

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 43868

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

• Number of Tubes
• 4

• Valves / Tubes
• 6F6 6L7 6N7 80

• Wave bands
• Wave Bands given in the notes.

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

• Material
• Metal case

• from Radiomuseum.org
• Model: Frequency Standard HT-7 - Hallicrafters, The; Chicago,

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Dimensions (WHD)
• 140 x 318 x 203 mm / 5.5 x 12.5 x 8 inch

• Notes
• Frequency Standard produces harmonics on 100, 100 or 10kHz, U-Model costs 5USD more and operates from 110-250 Volt

• Price in first year of sale
• 30.00 $

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 12 = ca. 1941 and before

• Mentioned in
• Radio Shack Catalog (1940, p.6)

• Other Models

• Here you find 898 models, 468 with images and 493 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hallicrafters, The; Chicago, IL and Arlington/Grand Prairie, TX