• Country
• United States of America (USA)

• Manufacturer / Brand
• Howard Radio Company; Chicago (IL)

• Year
• 1938

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

• Radiomuseum.org ID
• 44550

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

• Number of Tubes
• 9

• Valves / Tubes
• 6SK7 6K8G 6SK7 6SK7 6SQ7 6K6GT 6H6G 6C5 80

• Main principle
• Superhet with RF-stage; ZF/IF 465 kHz; 2 AF stage(s)

• Tuned circuits
• 10 AM circuit(s)

• Wave bands
• Broadcast plus more than 2 Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 105-125 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 6.5 inch = 16.5 cm

• Power out
• 4 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: 437 - Howard Radio Company; Chicago

• Shape
• Tablemodel, low profile (big size).

• Notes
• Successor 437-A came in 1939.

• Net weight (2.2 lb = 1 kg)
• 24 lb (24 lb 0 oz) / 10.896 kg

• Price in first year of sale
• 54.50 USD

• External source of data
• Ernst Erb

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

• Mentioned in
• Shortwave Receivers - Past & Present (3rd ed.)

• Literature/Schematics (1)
• Communications Receivers (4th edition page 75.)

• Other Models

• Here you find 354 models, 152 with images and 214 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Howard Radio Company; Chicago (IL)