• Country
• United States of America (USA)

• Manufacturer / Brand
• General Radio Company; Cambridge (MA)

• Year
• 1933 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 202787

• • alternative name: GenRad

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

• Number of Tubes
• 2

• Valves / Tubes
• 230 230

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Dry Batteries / "A" = 2 x *6 dry cells & "B" Burgess "5308, 3 x 45 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Modulated Oscillator 484 & 484A - General Radio Company;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 460 x 323 x 365 mm / 18.1 x 12.7 x 14.4 inch

• Notes
• Modulated RF oscillator covering 0.1 to 40 MHz.
  Internally modulated at 1 kHz or optionally at 400 Hz. There is a breadboard to it with holes to put the different coils away, measuring 300 x 480 mm. The case of the model 484 is wood and the width is 390 mm plus two handles of 35 mm each. Claude Lyons Advertisement from 1934 shows a model 484-A.

• Source of data
• Experimental Wireless & Wireless Engineer

• Author
• Model page created by Roy Johnson. See "Data change" for further contributors.

• Other Models

• Here you find 241 models, 212 with images and 131 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from General Radio Company; Cambridge (MA)