• Country
• United States of America (USA)

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

• Year
• 1954 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 68268

• • alternative name: Chicago Radio Lab

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

• Number of Tubes
• 5

• Valves / Tubes
• 1U4 1L6 1U4 1U5 3V4

• Main principle
• Superhet with RF-stage; ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• Line / Batteries (any type) / AC/DC 117=110-120 / 9 & 90 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.25 inch = 13.3 cm

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: L507 Ch= 5L42 - Zenith Radio Corp.; Chicago,

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

• Dimensions (WHD)
• 16 x 11.5 x 7.5 inch / 406 x 292 x 191 mm

• Notes

• Zenith model L507 is a three power portable 3 band superheterodyne receiver.
   The normal voltage of operation is 117 VAC but the Zenith adapter for 220 volts designed for the Transoceanic series will also fit the L-507.

• Net weight (2.2 lb = 1 kg)
• 12.2 lb (12 lb 3.2 oz) / 5.539 kg

• Price in first year of sale
• 89.95 USD

• External source of data
• Ernst Erb

• Source of data
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Circuit diagram reference
• Rider's Perpetual, Volume 23 (last), covering up to 1954

• Mentioned in
• Collector's Guide to Antique Radios 4. Edition

• Literature/Schematics (1)
• -- Original-techn. papers. (The Spectrum Monitor, Feb. 2023, "Zenith's Own Transoceanic Clone - Zenith Meridian L-507", R. Post)

• Literature/Schematics (4)
• Photofact Folder, Howard W. SAMS (Set 229 folder 18, dated 2-54)

• Other Models

• Here you find 4604 models, 4245 with images and 3762 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Zenith Radio Corp.; Chicago, IL