4445 Model 9 variometer tuned

Atwater Kent Mfg. Co.; Philadelphia, USA

Data
Forum
Pictures
Collections

  • Year
  • 1923
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 33386

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • TRF without regeneration; 2 AF stage(s)
  • Tuned circuits
  • 2 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Wooden case, TUBES VISIBLE.
  • from Radiomuseum.org
  • Model: 4445 Model 9 [variometer tuned] - Atwater Kent Mfg. Co.;
  • Shape
  • Tablemodel, with any shape - general.
  • Notes
  • Breadboard. Two dials (primary tuning control knobs) Breadboard consisting of two type 11 tuners, RF-amp, TA 3812 Det./Amp; even regeneration was possible (though not designed for) through plate coupling (with a very good front tube);
  • Price in first year of sale
  • 68.00 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
  • Literature/Schematics (2)
  • The Atwater Kent Radios, The AWA Review, 1999 Vol. 12, by Ralph O. Williams, pages 53-57

 Collections | Museums | Literature

Collections

The model 4445 is part of the collections of the following members.

Museums

The model 4445 can be seen in the following museums.

 Forum