• Country
• Japan

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

• Year
• 1979–1983 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 78411

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

• Number of Transistors
• 39

• Semiconductors

• Main principle
• Superhet, double/triple conversion; ZF/IF 2000/455 kHz

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

• Power type and voltage
• Line / Batteries (any type) / 220/ 8×1,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

• Power out
• 2 W (unknown quality)

• Material
• Various materials

• from Radiomuseum.org
• Model: Premix Double Superheterodyne System RF-4900 [International Model] - Panasonic, Matsushita,

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 480 x 200 x 355 mm / 18.9 x 7.9 x 14 inch

• Notes
• Panasonic RF-4900: shortwave coverage 1600 - 30000 kHz, VHF(FM). Below 3000 kHz single conversion, above 3000 kHz double conversion. Digital counter active on all bands, no longwave.
  Sold in Japan as Proceed RJX-4800D; similar model sold in Europe RF-4900LBS / DR-49.
  Similar model sold in UK RF-4900 LBE.
  This model page is to document the international variant RF-4900, please check before uploading images.

• Net weight (2.2 lb = 1 kg)
• 8 kg / 17 lb 9.9 oz (17.621 lb)

• Mentioned in
• - - Manufacturers Literature ((D) Panasonic ´81 ´82 Gesamtprogramm)

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

• Other Models

• Here you find 3049 models, 2826 with images and 633 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