• Country
• Japan

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

• Year
• 1966–1968

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 256511

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

• Number of Transistors
• 7

• Semiconductors
• 2SA102 2SA101 2SA101 2SB173 2SB175 2SB176 2SB176 OA90

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Batteries / addl. power jack / C: 4 x 1,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 3.5 inch = 8.9 cm

• from Radiomuseum.org
• Model: National R-156 - Panasonic, Matsushita,

• Dimensions (WHD)
• 8.125 x 5.5 x 2.3125 inch / 206 x 140 x 59 mm

• Notes

• National Model R156

  A seven transistor BC personal portable radio. Black leatherette cabinet.

  Features: tuning range, 525 - 1605 kC/s (kHz). Speaker, 3½" dynamic; output 300 mW. Separate tone control; precision tuning; ferrite core aerial; terminals for earphone, extension speaker and extension power supply. Operates from four Type UM2 batteries. (MINGAY'S PRICE SERVICE)

• Net weight (2.2 lb = 1 kg)
• 2 lb 8 oz (2.5 lb) / 1.135 kg

• Price in first year of sale
• 57.95 AUS $

• Mentioned in
• Mingay's Price Service (Feb 1967 to Feb 1968.)

• Literature/Schematics (1)
• J.R. Publications Transistor Radio Service Handbook (Group C4, 1967, Page N134.)

• Author
• Model page created by Daniel Rosha. See "Data change" for further contributors.

• Other Models

• Here you find 3040 models, 2816 with images and 631 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