• Country
• United States of America (USA)

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

• Year
• 1934

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 44733

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

• Number of Tubes
• 9

• Valves / Tubes
• 77 76 78 6B7 76 76 42 42 80

• Main principle
• Superheterodyne (common); ZF/IF 465 kHz; 3 AF stage(s)

• Tuned circuits
• 8 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

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

• from Radiomuseum.org
• Model: R-9 - Howard Radio Company; Chicago

• Dimensions (WHD)
• 22 x 40 x 12.5 inch / 559 x 1016 x 318 mm

• Notes
• BC, TROP(1600 - 4000 kHz), SW1(4.0 - 12.0 MHz) and SW2(10.0 - 22.0 MHz) bands. Push-pull AF amplifier.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 5 = ca. 1934 and before

• 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)