• 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
• 1960/1961

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 179617

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

• Number of Tubes
• 6

• Valves / Tubes
• 6A2 6K4_China 6N2 6P1_China 6E1_China 6Z4_China

• Main principle
• Superheterodyne (common); ZF/IF 465 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 110; 220 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Meiduo 美多 663-2-6 - Shanghai No.3 上海无线电三厂

• Shape
• Tablemodel, low profile (big size).

• Notes
• The model Meiduo 美多 663-2-6 (Metto) receives the broadcast band 530 - 1610 kc and SW 3.98 - 9.1 mc plus 8.9 - 18.2 mc. The following Meiduo models share the same chassis and documentation - with different cabinets: 663-2-6, 663-2-8 and 663-2-10.

• Literature/Schematics (1)
• 11-Radio manual (green 2) 1965, with 220 pages. (page 140.)

• 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