• Year
  • 1932
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 63975
    • alternative name: American Bosch Magneto
    • Brand: Essex

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • TRF without regeneration; Screengrid 1926-1935
  • Tuned circuits
  • 3 AM circuit(s)
  • Wave bands
  • Broadcast (MW), Police, sometimes also early TV (75-200m).
  • 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: Personal 200A Treasure Chest - United American Bosch Magneto
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Notes
  • Ornate wooden chest with lid over the controls. The little brass button on the control panel is the band switch. Pulling this button up switches to the Police Band. Pushing the button down switches to the standard AM Broadcast Band.

  • Price in first year of sale
  • 49.00 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 3 = 1933 and before

 Collections | Museums | Literature


The model Personal 200A is part of the collections of the following members.


Forum contributions about this model: United American: Personal 200A Treasure Chest

Threads: 1 | Posts: 1

The little Brass Knob is NOT a MUTE Button

I am told it selects the POLICE band


Bob Timms

Wilmingon, NC


Bob Timms, 29.Feb.12

Weitere Posts (1) zu diesem Thema.