• Country
• United States of America (USA)

• Manufacturer / Brand
• Automatic Radio Mfg. Co.; Boston (MA)

• Year
• 1956

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 115719

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

• Number of Tubes
• 3

• Valves / Tubes
• 1V6 1AH4 1AJ5

• Number of Transistors
• 2

• Semiconductors
• OC71 OC71

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage and/or dry batteries / 4 & 45 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Tom Thumb Transistor Radio TT-600 - Automatic Radio Mfg. Co.;

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 5 x 3.25 x 1 inch / 127 x 83 x 25 mm

• Notes
• The Tom Thumb TT-600 Tube/Transistor Hybrid from Automatic Radio was displayed in the Spring/Summer 1956 Continental mail-order catalog (weight 1,5 lbs). It came in colors Red, Blue, Melon and Charcoal Styrene case. Successor of TT528, where the output tube 1AG4 is replaced by 2 transistors.

• Net weight (2.2 lb = 1 kg)
• 0.7 kg / 1 lb 8.7 oz (1.542 lb)

• Mentioned in
• Funkgeschichte der GFGF (Nr. 109 (1996) S. 124)

• Literature/Schematics (1)
• Schiffer, The Portable Radio in American Life

• Literature/Schematics (2)
• Photofact Folder, Howard W. SAMS (Set 349 Folder 3 Date 3-57)

• Author
• Model page created by Günther Stabe † 19.8.20. See "Data change" for further contributors.

• Other Models

• Here you find 401 models, 163 with images and 321 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Automatic Radio Mfg. Co.; Boston (MA)