• Country
• Japan

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

• Year
• 1982–1985 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 74144

• Number of Transistors
• 61

• Semiconductors

• Main principle
• Superhet, double/triple conversion; ZF/IF 10695/455 kHz

• Wave bands
• Broadcast, Long Wave, more than 2 x SW plus FM or UHF.

• Power type and voltage
• Line / Batteries (any type) / 110-240 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 9 cm = 3.5 inch

• Power out
• 2 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: RF-3100L DR-31 - Panasonic, Matsushita,

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 371 x 122 x 241 mm / 14.6 x 4.8 x 9.5 inch

• Notes
• Coverage LW, BC (MW), SW 1600 - 30000 kHz; AM, SSB (BFO), FM (VHF); digital readout, PLL-synthesis. Sold in US as RF-3100, variant: RF-3100LBE (IF 10702/462 kHz, sold in UK?).
  This page describes the model:
  Panasonic RF-3100L, DR-31, (Type?).

• Net weight (2.2 lb = 1 kg)
• 3.2 kg / 7 lb 0.8 oz (7.048 lb)

• Mentioned in
• -- Original-techn. papers.

• Author
• Model page created by Martin Bösch. See "Data change" for further contributors.

• Other Models

• Here you find 2987 models, 2764 with images and 621 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