• Country
• United States of America (USA)

• Manufacturer / Brand
• Grimes, David Inc.; Staten Island, NY

• Year
• 1925

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 43725

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

• Number of Tubes
• 3

• Valves / Tubes

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown); Reflex

• Power type and voltage
• Dry Batteries

• from Radiomuseum.org
• Model: Baby Grand - Grimes, David Inc.; Staten

• Shape
• Tablemodel, with any shape - general.

• Notes
• Three dials (primary tuning control knobs)

• Price in first year of sale
• 49.00 $

• External source of data
• Ernst Erb

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

• Other Models

• Here you find 17 models, 14 with images and 8 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Grimes, David Inc.; Staten Island, NY