• Country
• United States of America (USA)

• Manufacturer / Brand
• Zenith Radio Corp.; Chicago, IL

• Year
• 1965 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 282982

• • alternative name: Chicago Radio Lab

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

• Number of Tubes
• 7

• Valves / Tubes
• 12DT8 12BE6 12BA6 12BA6 12AU6 14GT8 35C5

• Main principle
• Superheterodyne (common); ZF/IF 455/10700 kHz; 2 AF stage(s)

• Wave bands
• Broadcast (BC) and FM or UHF.

• Power type and voltage
• Alternating Current supply (AC) / 60Hz, 110-120 Volt

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

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: N725J Ch= 7N05 - Zenith Radio Corp.; Chicago,

• Shape
• Tablemodel, slant panel.

• Dimensions (WHD)
• 15 x 9 x 8 inch / 381 x 229 x 203 mm

• Notes

• The Zenith N725 is an AC operated 7 tube BC and FM receiver.  Uses Qty(1) elliptical PM 5" x 7" speaker.  Has a blue cabinet with white framed front panel with 3-tone blue grillcloth; AM tuner frame is silver, FM gold.  Chassis used a silicon diode rectifier.  Chassis has AFC.

  The following models use the same schematic and chassis:

  Model	Chassis	Cabinet Color
  N725C	7N05	TBD
  N725J	7N05	Blue Cabinet, white panel
  N725W	7N05	White Cabinet, beige panel
  X326C	7N05	TBD
  X326J	7N05	Blue Cabinet, white panel
  X326W	7N05	White Cabinet, beige panel

   

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 916, folder 8 dated 10-67)

• Author
• Model page created by Steve Dymale. See "Data change" for further contributors.

• Other Models

• Here you find 4496 models, 4101 with images and 3615 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Zenith Radio Corp.; Chicago, IL