• Country
• Japan

• Manufacturer / Brand
• Panasonic, Matsushita, National ナショナル (also tubes); Osaka

• Year
• 1960 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 161602

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

• Number of Transistors
• 10

• Semiconductors
• 2SA103 or. MC103 2SA103 or. MC103 2SA102 or. MC102 2SA101 or. MC101 2SA101 or. MC101 2SB171 or. OC71 2SB171 or. OC71 2SB171 or. OC71 2SB172 or. OC72 2SB172 or. OC72 MA23

• Main principle
• Superhet with RF-stage; ZF/IF 455 kHz; 3 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Dry Batteries / C: 4 x 1,5 Volt

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

• Power out
• 0.15 W (0.25 W max.)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: National 10-Transistor 2-Band T-28T - Panasonic, Matsushita,

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

• Notes

• National T-28T 10-Transistor 2-Band;

  Frequency Range

  MW: 540 - 1600 kHz

  SW: 7 - 18 MHz

  
  Two earphone jacks, External antenna terminal, sold with brown leather case.

  See also T-28T Revised and model T-28U with different  SW band reception.

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

• Other Models

• Here you find 3053 models, 2830 with images and 635 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Panasonic, Matsushita, National ナショナル (also tubes); Osaka