• Country
• United States of America (USA)

• Manufacturer / Brand
• Emerson Radio & Phonograph Corp.; New York, NY

• Year
• 1952 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 38678

• • alternative name: Emerson Television

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

• Number of Tubes
• 4

• Valves / Tubes
• 1R5 1U4 1U5 3V4

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

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage and/or dry batteries / 1.5 & 67.5 Volt

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

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: 704 Ch= 120154-B - Emerson Radio & Phonograph

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

• Dimensions (WHD)
• 9 x 7 x 2.5 inch / 229 x 178 x 64 mm

• Notes

• Emerson model 704 is a battery operated portable superheterodyne receiver. Ferrite antenna.

• External source of data
• Ernst Erb

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

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 12, 1952

• Mentioned in
• The Radio Collector's Directory and Price Guide 1921 - 1965 (Rider's Perpetual, Volume 23 (last))

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Date 11-52, Set 184, Folder 6)

• Other Models

• Here you find 2071 models, 1147 with images and 1628 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Emerson Radio & Phonograph Corp.; New York, NY