• Country
• United States of America (USA)

• Manufacturer / Brand
• Grebe, A.H. & Co.; Richmond Hill (NY)

• Year
• 1931

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 43535

• • Brand: Synchrophase

• Number of Tubes
• 7

• Valves / Tubes
• 35 24 27 35 24 47 80

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast only (MW).

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

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 24 cm = 9.4 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: M1 - Grebe, A.H. & Co.; Richmond

• Shape
• Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).

• Dimensions (WHD)
• 460 x 500 x 320 mm / 18.1 x 19.7 x 12.6 inch

• Net weight (2.2 lb = 1 kg)
• 14.8 kg / 32 lb 9.6 oz (32.599 lb)

• Price in first year of sale
• 59.00 $

• External source of data
• Ernst Erb

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

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

• Other Models

• Here you find 188 models, 124 with images and 61 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Grebe, A.H. & Co.; Richmond Hill (NY)