5-Tube Pentode 31 13-T-5

Audiola Radio Co.; Chicago, Illinois

  • Year
  • 1931
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 33468
    • Brand: Audiodyne

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 only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 105-125 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • from Radiomuseum.org
  • Model: 5-Tube Pentode 31 13-T-5 - Audiola Radio Co.; Chicago,
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 2 = 1932 (Models 1931/1932)

 Collections | Museums | Literature

 Forum

Forum contributions about this model: Audiola Radio Co.;: 5-Tube Pentode 31 13-T-5

Threads: 1 | Posts: 3

Hi,

I have one of these sets and am in the process of recapping it. One question is the orientation of the two 4MFD electrolytics in the large can, since it's not shown on the schematic. Are both negatives grounded to the chassis, or should one positive lead (and if so, which one) be grounded?

Thanks,

Rick

 

Richard Joltes, 11.Feb.19

Weitere Posts (3) zu diesem Thema.