• Country
• Hong Kong

• Manufacturer / Brand
• Emperor; Hong Kong

• Year
• 1965 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 201979

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

• Number of Transistors
• 6

• Semiconductors

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 3 AF stage(s)

• Tuned circuits
• 4 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 cm = 1.6 inch

• Power out
• 0.5 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Micro Solid State MC-7 - Emperor; Hong Kong

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

• Dimensions (WHD)
• 65 x 70 x 30 mm / 2.6 x 2.8 x 1.2 inch

• Notes
• Six transistors + 1 diode detector, superhet, 2 further diodes used to bias oscillator/mixer stage. Very small Hong Kong built radio.

• Net weight (2.2 lb = 1 kg)
• 0.146 kg / 0 lb 5.1 oz (0.322 lb)

• Mentioned in
• Schematic deduced from study of actual radio

• Author
• Model page created by Colin Boggis. See "Data change" for further contributors.

• Other Models

• Here you find 9 models, 8 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Emperor; Hong Kong