• Country
• People's Republic of China

• Manufacturer / Brand
• Shanghai No.3 上海无线电三厂 Shanghai No.3 Radio Factory: Shanghai

• Year
• 1962/1963

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 179611

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

• Number of Transistors
• 8

• Semiconductors
• 3AG2 3AG2 3AG1 3AG1 3AX13 3AX13 3AX14 3AX14 1Z1_Diode

• Main principle
• Superheterodyne (common); ZF/IF 465 kHz; 3 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Dry Batteries / 6 Volt

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

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Meiduo 美多 28A - Shanghai No.3 上海无线电三厂

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

• Dimensions (WHD)
• 235 x 140 x 60 mm / 9.3 x 5.5 x 2.4 inch

• Notes
• The model Meiduo 美多 28A (Metto) receives the broadcast band 535 - 1605 kc and SW 4.5 - 12 mc.

• Literature/Schematics (1)
• 11-Radio manual (green 2) 1965, with 220 pages. (page 130.)

• Author
• Model page created by Ernst Erb. See "Data change" for further contributors.

• Other Models

• Here you find 49 models, 42 with images and 43 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Shanghai No.3 上海无线电三厂 Shanghai No.3 Radio Factory: Shanghai