• Country
• United States of America (USA)

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

• Year
• 1933 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 180010

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

• Number of Tubes
• 4

• Valves / Tubes
• 24 24 47 80

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown)

• Tuned circuits
• 2 AM circuit(s)

• Wave bands
• Broadcast only (MW).

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

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 17.8 cm = 7 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: Treasure Chest 144-A - United American Bosch Magneto

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Dimensions (WHD)
• 375 x 232 x 220 mm / 14.8 x 9.1 x 8.7 inch

• Notes
• Switch on when lid is lifted. The little brass button on the control panel is for muting the sound: Pull to mute, push to recover sound.

• Net weight (2.2 lb = 1 kg)
• 10 kg / 22 lb 0.4 oz (22.026 lb)

• Author
• Model page created by Benis Berti. See "Data change" for further contributors.

• Other Models

• Here you find 415 models, 166 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)