• Country
• Japan

• Manufacturer / Brand
• Mellow-Tone (where?)

• Year
• 1960

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 180025

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

• Number of Transistors
• 2

• Semiconductors
• 2SA100 2SB172 MA51A

• Main principle
• TRF with diode detector; 2 AF stage(s); Reflex

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 9 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.5 cm = 2.2 inch

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: 2 Transistor Boy's Radio MT-203 - Mellow-Tone where?

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

• Dimensions (WHD)
• 64 x 105 x 32 mm / 2.5 x 4.1 x 1.3 inch

• Notes
• 2 Transistor Boy´s Radio MT-203 with leather case, jacks for earphone and rod antenna. Photo showing item with missing top brand plate.

• Net weight (2.2 lb = 1 kg)
• 0.160 kg / 0 lb 5.6 oz (0.352 lb)

• Author
• Model page created by Eckhard Wegner. See "Data change" for further contributors.

• Other Models

• Here you find 11 models, 10 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Mellow-Tone (where?)