• Country
• United States of America (USA)

• Manufacturer / Brand
• Master-Craft Electronics Corp.; New York, NY

• Year
• 1965 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 148797

• Number of Transistors
• 7

• Semiconductors

• Main principle
• Superheterodyne (common)

• Tuned circuits
• 5 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)

• Power out
• 0.05 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Emerald Ruby 7 Transistor 7RT82 - Master-Craft Electronics Corp.

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

• Dimensions (WHD)
• 2.5 x 2.5 x 0 inch / 64 x 64 x 0 mm

• Notes
• Master-Craft Emerald Ruby 7RT 82, 7 transistor;
  Charcoal gray, earphones jack, key chain, probably made in Japan.

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 20 models, 16 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Master-Craft Electronics Corp.; New York, NY