Super Defiant SX-25

• Country
• United States of America (USA)

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

• Year
• 1940–1946

• Category
• Amateur-Receiver (amateur bands, may include broadcast bands)

• Radiomuseum.org ID
• 18700

• Picture
• Schematics

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

• Number of Tubes
• 12

• Valves / Tubes
• 6SK7 6SK7 6K8 6SK7 6SK7 6SQ7 6SQ7 6H6 6J5 6F6 6F6 80

• Main principle
• Superhet with RF-stage; ZF/IF 455 kHz

• Tuned circuits
• 10 AM circuit(s)

• Wave bands
• Broadcast, Short Wave(s) and Police.

• Power type and voltage
• Line / Storage batteries (perhaps also batteries) / 100-125 / 6 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 8 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Super Defiant SX-25 - Hallicrafters, The; Chicago,

• Shape
• Boatanchor (heavy military or commercial set >20 kg).

• Dimensions (WHD)
• 495 x 241 x 283 mm / 19.5 x 9.5 x 11.1 inch

• Notes
• Coverage: 0.540-1.7, 1.7-5.1, 5.0-15.7, 15.2-42MHz, XTal-IF-Filter , DC Operation also by a 6Volt Storage Battery and "B" Batteries or Vibrapack

• Net weight (2.2 lb = 1 kg)
• 21 kg / 46 lb 4.1 oz (46.256 lb)

• Price in first year of sale
• 99.00 $

• External source of data
• E. Erb 3-907007-36-0

• Source of data
• Communications Receivers

• Circuit diagram reference
• Rider's Perpetual, Volume 11 = ca. 1940 and before

• Other Models

• Here you find 922 models, 473 with images and 520 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