• Country
• United States of America (USA)

• Manufacturer / Brand
• Clough-Brengle Co., Chicago (IL)

• Year
• 1930 ??

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 206201

• Number of Tubes
• 2

• Valves / Tubes
• 30 30

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Dry Batteries

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Radio Frequency Signal Generator ODA - Clough-Brengle Co., Chicago IL

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 11 x 7 x 10 inch / 279 x 178 x 254 mm

• Notes
• This unit is powered strictly from batteries, a complete field unit. It has five frequency ranges 100 kHz - 300 kHz, 300 kHz - 900 khz, 900 kHz - 2500 kHz, 2500 kHz - 9 MHz, 9 MHz - 30 MHz. The frequency ranges are not as well specified as modern units. A hand-written chart accompanies the unit on which the upper and lower frequencies within a switch-selected range do not necessarily overlap to give a complete, calibrated sweep across the entire range of frequencies this unit is theoretically capable of generating.

• Net weight (2.2 lb = 1 kg)
• 12 lb (12 lb 0 oz) / 5.448 kg

• Author
• Model page created by Hank Kaczmarski. See "Data change" for further contributors.

• Other Models

• Here you find 45 models, 42 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Clough-Brengle Co., Chicago (IL)