• Country
• United States of America (USA)

• Manufacturer / Brand
• United American Bosch (Magneto Corporation); Springfield (MA)

• Year
• 1935

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 32438

• • alternative name: American Bosch Magneto
  • Brand: Essex

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

• Number of Tubes
• 10

• Valves / Tubes
• 27 51 58 58 27 27 27 45 45 80

• Main principle
• Superheterodyne (common); ZF/IF 175 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: 10 Essex - United American Bosch Magneto

• Shape
• Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

• External source of data
• Ernst Erb

• Source of data
• Collector's Guide to Antique Radios (7th Edition)

• Circuit diagram reference
• Rider's Perpetual, Volume 3 = 1933 and before

• Literature/Schematics (1)
• Rider's Perpetual, Volume 9 = 1938 and before (Riders 3-6 ; 9-6)

• Other Models

• Here you find 415 models, 166 with images and 275 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from United American Bosch (Magneto Corporation); Springfield (MA)