• Country
• Japan

• Manufacturer / Brand
• Unknown - CUSTOM BUILT: Japan

• Year
• 1979 ?

• Category
• Car Radio, perhaps also + sound player/recorder

• Radiomuseum.org ID
• 232676

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast (BC) and FM or UHF.

• Details
• Cassette-Recorder or -Player

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / 12 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 4 W (undistorted)

• Material
• Metal case

• from Radiomuseum.org
• Model: Mars Cassette Stereo-Tape M-311 - Unknown - CUSTOM BUILT: Japan

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 75 x 55 x 180 mm / 3 x 2.2 x 7.1 inch

• Net weight (2.2 lb = 1 kg)
• 0.550 kg / 1 lb 3.4 oz (1.211 lb)

• Author
• Model page created by Juan Alvarez Alonso. See "Data change" for further contributors.

• Other Models

• Here you find 1139 models, 1001 with images and 97 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Unknown - CUSTOM BUILT: Japan