• Country
• Giappone

• Manufacturer / Brand
• DDK (D.D.K.) Co. Ltd.; Tokyo

• Year
• 1962 ??

• Category
• Radio (o sintonizzatore del dopoguerra WW2)

• Radiomuseum.org ID
• 138293

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

• Number of Transistors
• 2

• Semiconductors

• Main principle
• A circuiti accordati (amplif. diretta) con rivelazione a diodo

• Wave bands
• Solo onde medie (OM).

• Power type and voltage
• Batterie a secco / 9 Volt

• Altoparlante
• AP magnetodinamico (magnete permanente e bobina mobile) / Ø 2 inch = 5.1 cm

• Materiali
• Plastica (non bachelite o catalina)

• from Radiomuseum.org
• Model: Lark 2 Transistor TR-208S - DDK D.D.K. Co. Ltd.; Tokyo

• Forma
• Tascabile (portatile molto piccola), < 20 cm

• Notes
• Pocket-size transistor radio. Two PNP transistors: the first one as RF and AF amplifier in a reflex configuration, the second as AF output amplifier. Built-in ferrite antenna.

• Source of data
• -- Original-techn. papers.

• Author
• Model page created by Emilio Ciardiello. See "Data change" for further contributors.

• Other Models

• Here you find 13 models, 13 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from DDK (D.D.K.) Co. Ltd.; Tokyo