• Country
• United States of America (USA)

• Manufacturer / Brand
• Collins Radio Company; Cedar Rapids (IA)

• Year
• 1939 ??

• Category
• Radio part (not a module) 

• Radiomuseum.org ID
• 332241

• Number of Tubes
• 1

• Valves / Tubes
• 6SJ7

• Main principle
• something special ? Please give information (notes)

• Wave bands
• - without

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Permeability Tuned Oscillator 70E-8A - Collins Radio Company; Cedar

• Shape
• Chassis only or for «building in»

• Notes

• Tube 6SJ7 is from 1939. The model can not be from before!

• Author
• Model page created by Uday Kalburgi. See "Data change" for further contributors.

• Other Models

• Here you find 101 models, 79 with images and 35 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Collins Radio Company; Cedar Rapids (IA)