• Country
• United States of America (USA)

• Manufacturer / Brand
• Halson Radio Mfg. Co.; New York City (NY)

• Year
• 1938

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 43996

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

• Number of Tubes
• 4

• Valves / Tubes
• 6K7GT 6J7GT 25L6GT 25Z6GT L49B

• Main principle
• TRF without regeneration; 1 AF stage(s)

• Tuned circuits
• 2 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• AC/DC-set / 115 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Power out
• 2 W (max.)

• Material
• Catalin (a brand name for a thermosetting polymer popular in the 1930s and 1940s - a phenol formaldehyde resin - like Bakelite, but a two-stage process with a lot of work afterwards).

• from Radiomuseum.org
• Model: A-5 Dwarf - Halson Radio Mfg. Co.; New

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Notes

• BC (545-1720 kHz) band.

  Material listed on specification sheet as "Fiberloon".

  Came in four onyx colors: unknown, red, green or ivory.

• Price in first year of sale
• 15.00 USD

• External source of data
• Ernst Erb

• Source of data
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Circuit diagram reference
• Rider's Perpetual, Volume 9 = 1938 and before

• Mentioned in
• Collector's Guide to Antique Radios (7th Edition)

• Literature/Schematics (1)
• Table Top Radios Vol. 4 Stein 2003

• Literature/Schematics (2)
• Radio Today (and Television) (. July 1938, pg 26 and August, 1938, pg 47 and 49)

• Other Models

• Here you find 106 models, 39 with images and 65 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Halson Radio Mfg. Co.; New York City (NY)