• Country
• United States of America (USA)

• Manufacturer / Brand
• Patterson Radio Co. / Electric Co.; Los Angeles, CA

• Year
• 1938 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 50291

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

• Number of Tubes
• 12

• Valves / Tubes
• 6A8 6K6 6K7 6K7 6U5 6H6 6C5 6C5 6C5 6F6 6F6 5Y3

• Main principle
• Superheterodyne (common); ZF/IF 465 kHz; 3 AF stage(s)

• Tuned circuits
• 8 AM circuit(s)

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

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

• from Radiomuseum.org
• Model: 128 - Patterson Radio Co. / Electric

• Notes
• Bandfilter input (tuned circuit #9) for BC band. Tuning eye, push-pull audio amplifier.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 9 = 1938 and before

• Mentioned in
• Rider's 9-2, 9-5, 9-6

• Other Models

• Here you find 111 models, 45 with images and 66 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Patterson Radio Co. / Electric Co.; Los Angeles, CA