• Country
• United States of America (USA)

• Manufacturer / Brand
• Wilco (Sanyo Electric, Inc.); Compton, CA

• Year
• 1961 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 238655

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

• Number of Transistors
• 6

• Semiconductors
• 2S30 2S31 2S31 1NA4 2S32 2S33 2S33

• Main principle
• Superheterodyne (common); 2 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 1 x 9 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 cm = 2 inch

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: 6 Transistor ST-620 - Wilco Sanyo Electric, Inc.;

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

• Dimensions (WHD)
• 61 x 100 x 22 mm / 2.4 x 3.9 x 0.9 inch

• Notes

• Made in Japan

• Net weight (2.2 lb = 1 kg)
• 0.154 kg / 0 lb 5.4 oz (0.339 lb)

• Literature/Schematics (1)
• -- Schematic

• Author
• Model page created by José Pinto. See "Data change" for further contributors.

• Other Models

• Here you find 25 models, 21 with images and 13 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Wilco (Sanyo Electric, Inc.); Compton, CA