• Country
• United States of America (USA)

• Manufacturer / Brand
• Graybar Electric Co.; New York (NY)

• Year
• 1930

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 43441

• Number of Tubes
• 9

• Valves / Tubes
• 24 27 24 24 24 27 45 45 80

• Main principle
• Superhet with RF-stage; ZF/IF 175 kHz; Screengrid 1926-1935

• Tuned circuits
• 10 AM circuit(s)

• Wave bands
• Broadcast only (MW).

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

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

• Power out
• 3 W (undistorted)

• Material
• Wooden case

• from Radiomuseum.org
• Model: 770 [old] - Graybar Electric Co.; New York

• Shape
• Console, Lowboy (legs < 50 %).

• Dimensions (WHD)
• 27.5 x 48 x 16.25 inch / 699 x 1219 x 413 mm

• Notes

• Same circuitry as RCA Radiola 82. With tone control. Without remote control.

• Price in first year of sale
• 179.00 $

• External source of data
• Ernst Erb

• Source of data
• Radio Collector`s Guide 1921-1932

• Circuit diagram reference
• Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

• Mentioned in
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Other Models

• Here you find 31 models, 16 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Graybar Electric Co.; New York (NY)