• Country
• United States of America (USA)

• Manufacturer / Brand
• Doolittle Radio, Inc.; Chicago (IL)

• Year
• 1950 ?

• Category
• Commercial Receiver (may include amateur bands)

• Radiomuseum.org ID
• 223792

• Main principle
• Superheterodyne (common)

• Wave bands
• Short Wave (SW only)

• Power type and voltage
• Alternating Current supply (AC) / 110 Volt

• Loudspeaker
• Permanent or electro-dynamic (moving coil), system not known yet.

• Material
• Metal case

• from Radiomuseum.org
• Model: FM Frequency Monitor FD-9A - Doolittle Radio, Inc.; Chicago

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 20.5 x 10.5 x 13.75 inch / 521 x 267 x 349 mm

• Notes
• Doolittle Radio FM Frequency Monitor FD-9A;
  30 - 44 MHz. 0,5 kHz - 12 kHz modulation meter. 75 W power consumption. Optional RF Adapter for transmitter check known.

• Net weight (2.2 lb = 1 kg)
• 32 lb (32 lb 0 oz) / 14.528 kg

• Source of data
• -- Original prospect or advert

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 6 models, 5 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Doolittle Radio, Inc.; Chicago (IL)