• Country
• Canada

• Manufacturer / Brand
• De Forest (DeForest) Crosley Radio, Consolidated Industries; Toronto

• Year
• 1937/1938

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 159124

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

• Number of Tubes
• 7

• Valves / Tubes
• 6A7M 6K7M 75M 6F6M 6X6 2X3 2X3

• Main principle
• Superheterodyne (common); ZF/IF 456 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast, Short Wave(s) and Police.

• 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: Dufferin Ch= 7D731 - De Forest DeForest Crosley

• Notes
• The 6X6 tube is used as a tuning indicator. The Rogers 12-70, 12-75, Majestic 770, De Forest Wellend and Victoria are electronically identical to this set. The Majestic 775 is identical with the exception of an added "Silent Tuning" switch.

• Circuit diagram reference
• Radio College of Canada

• Mentioned in
• RCC Rogers-Majestic section page 31, 30 & Cross Reference

• Literature/Schematics (4)
• Table Top Radios Vol. 4 Stein 2003 (page 74.)

• Author
• Model page created by Robin Roeckers. See "Data change" for further contributors.

• Other Models

• Here you find 272 models, 131 with images and 183 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from De Forest (DeForest) Crosley Radio, Consolidated Industries; Toronto