• Country
• United States of America (USA)

• Manufacturer / Brand
• Brunswick Div. Mersman Bros.

• Year
• 1938 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 34671

• • alternative name: Mershman Bros. Corp

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

• Number of Tubes
• 6

• Valves / Tubes
• 6A8 6K7 6Q7G 6V6G 6U5 5Y3G

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

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Alternating Current supply (AC)

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• from Radiomuseum.org
• Model: 4689 Ch= M-27 - Brunswick Div. Mersman Bros.

• Notes
• Push-button tuner; tuning eye.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 9 = 1938 and before

• Other Models

• Here you find 32 models, 9 with images and 24 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Brunswick Div. Mersman Bros.