• Country
• Japan

• Manufacturer / Brand
• Unknown - CUSTOM BUILT: Japan

• Year
• 1960 ??

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 175276

• Number of Transistors
• 2

• Semiconductors

• Main principle
• Audio-Amplification; 2 AF stage(s)

• Wave bands
• - without

• Power type and voltage
• Dry Batteries / 9 Volt

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

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Master Transistorized Intercom - Unknown - CUSTOM BUILT: Japan

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

• Dimensions (WHD)
• 75 x 105 x 35 mm / 3 x 4.1 x 1.4 inch

• Notes
• Intercom. Two parts: Master with amplifier and Sub without amp.

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

• Author
• Model page created by Hans Gerhardt † 4.12.22. See "Data change" for further contributors.

• Other Models

• Here you find 1131 models, 993 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