• Country
• Great Britain (UK)

• Manufacturer / Brand
• Ferranti, GB

• Year
• 1927 ??

• Category
• Radio part (not a module) 

• Radiomuseum.org ID
• 296518

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

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Audio Frequency Transformer AF7 - Ferranti, GB

• Shape
• Miscellaneous shapes - described under notes.

• Dimensions (WHD)
• 3 x 2.625 x 3.75 inch / 76 x 67 x 95 mm

• Notes

• Ratio:  1.75:1

  Primary Inductance:  150/280 Henries

  The Ferranti AF7 Transformer was designed for use in Receivers employing two audio frequency stages with modern high amplification valves (of the time).  Its high inductance also rendered it particularly suitable for use after an anode bend detector.

• Net weight (2.2 lb = 1 kg)
• 2 lb 8 oz (2.5 lb) / 1.135 kg

• Mentioned in
• - - Manufacturers Literature

• Author
• Model page created by Nick Hayward. See "Data change" for further contributors.

• Other Models

• Here you find 216 models, 120 with images and 163 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Ferranti, GB