• Country
• United States of America (USA)

• Manufacturer / Brand
• Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)

• Year
• 1950

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 49019

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

• Number of Tubes
• 4

• Valves / Tubes
• 1R5 1U4 1U5 3S4

• 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
• Line / Batteries (any type) / 117, 67.5, 3 Volt

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

• from Radiomuseum.org
• Model: 5M1U HS223 - Motorola Inc. ex Galvin Mfg.Co

• Notes
• Green

• External source of data
• Ernst Erb

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

• Circuit diagram reference
• Rider's Perpetual, Volume 21, Copyright 1950

• Other Models

• Here you find 4601 models, 2962 with images and 4100 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)