• Country
• United States of America (USA)

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

• Year
• 1935/1936

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 18300

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

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

• Number of Tubes
• 7

• Valves / Tubes
• 6D6 76 6D6 6D6 75 42 80

• Main principle
• Superhet with RF-stage; ZF/IF 456 kHz

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Power type and voltage
• Alternating Current supply (AC) / 110-240 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: 478 T - United American Bosch Magneto

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Price in first year of sale
• 475.00 SFR

• External source of data
• E. Erb 3-907007-36-0

• Circuit diagram reference
• Die «Thali Schemasammlung» führt das Modell.

• Picture reference
• Das Modell ist im «Radiokatalog» (Erb) abgebildet.

• Other Models

• Here you find 414 models, 165 with images and 272 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)