• Country
• United States of America (USA)

• Manufacturer / Brand
• International Radio Corp (Kadette); Ann Arbor, MI.

• Year
• 1936

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 45055

• • alternative name: International All Wave || International Industries || International Kadette || IRC

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

• Number of Tubes
• 6

• Valves / Tubes
• 6A7 6D6 76 43 43 25Z5

• Number of Transistors

• Semiconductors
• 60R30

• Main principle
• Superheterodyne (common); ZF/IF 448 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• AC/DC-set / 115 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Kadette 77 - International Radio Corp

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

• Dimensions (WHD)
• 0 x 12.5 x 6 inch / 0 x 318 x 152 mm

• Notes
• The same chassis is used in models 77, 777, 778 and 779; ballast tube 60R30.

• External source of data
• Ernst Erb

• Source of data
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Circuit diagram reference
• Rider's Perpetual, Volume 7 = 1936 and before

• Mentioned in
• Guide to Old Radios (Cathedral & Tombstone Radios; Stein, 2008)

• Literature/Schematics (1)
• Table Top Radios Vol. 1 Stein 98

• Other Models

• Here you find 194 models, 89 with images and 148 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from International Radio Corp (Kadette); Ann Arbor, MI.