• Country
• United States of America (USA)

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

• Year
• 1933 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 50339

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

• Number of Tubes
• 7

• Valves / Tubes
• 57 56 58 58 55 59 82

• Main principle
• Superheterodyne (common); ZF/IF 262 kHz; 2 AF stage(s)

• Tuned circuits
• 9 AM circuit(s)

• Wave bands
• Broadcast plus more than 2 Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 110; 125 or 220; 250 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: 74-AW [59 output ] - Patterson Radio Co. / Electric

• Shape
• Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

• Dimensions (WHD)
• 13.5 x 18 x 10.5 inch / 343 x 457 x 267 mm

• Notes
• Covers 575 to 15 metres in four bands. There is also a version using a 2A5 output tube (6 pins).

• External source of data
• Ernst Erb

• Source of data
• Radio Schema's, Deel II

• Literature/Schematics (1)
• Rider's Perpetual, Volume 4 = ca. 1934 and before (Patterson 4-1)

• 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