• Country
• United States of America (USA)

• Manufacturer / Brand
• National Union Radio Corp.; Orange (NJ)

• Year
• 1947

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 49678

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

• Number of Tubes
• 5

• Valves / Tubes
• 12SA7GT 12SK7GT 12SQ7GT 50L6GT 35Z5GT

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

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• AC/DC-set / 117 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 5 inch = 12.7 cm

• Power out
• 1.5 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: 571 Ch= 568 - National Union Radio Corp.;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 13.3 x 8 x 7.5 inch / 338 x 203 x 191 mm

• Notes
• Perforated metal front panel. Rotating pointer dial (although appearance is similar to slide rule). Dial lamp is 6.3v Mazda #47.

• External source of data
• Ernst Erb

• Source of data
• Collector's Guide to Antique Radios 4. Edition

• Circuit diagram reference
• Rider's Perpetual, Volume 17 = 1948 and before

• Mentioned in
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Literature/Schematics (1)
• Radio Retailing (Radio & Television R.) (January 1947 page 54.)

• Other Models

• Here you find 13 models, 6 with images and 8 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from National Union Radio Corp.; Orange (NJ)