• Country
• Great Britain (UK)

• Manufacturer / Brand
• Ferranti, GB

• Year
• 1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 166608

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

• Number of Tubes
• 3

• Valves / Tubes
• VP21 SP2 PT2

• Main principle
• TRF with regeneration

• Tuned circuits
• 2 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Storage and/or dry batteries / 2 & 120 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Battery Receiver 637B - Ferranti, GB

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Dimensions (WHD)
• 330 x 470 x 250 mm / 13 x 18.5 x 9.8 inch

• Notes
• Similar to the 1936 Ferranti Parva battery receiver. The Ferranti 637BR is the same but with additional Droitwich Rejector circuit. The 120 volt HT battery has 48 volt and 60 volt tappings.

• Literature/Schematics (1)
• Trader Service Sheet (suppl. of Wireless & El. Trader, etc.) (593)

• Author
• Model page created by Martin Zavelberg. See "Data change" for further contributors.

• Other Models

• Here you find 217 models, 120 with images and 165 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Ferranti, GB