• Country
• Great Britain (UK)

• Manufacturer / Brand
• Wireless Constructor, The; Radio Press Ltd., London

• Year
• 1931

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 278615

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

• Number of Tubes
• 4

• Valves / Tubes
• unknown_Tube unknown_Tube unknown_Tube U30/250

• Main principle
• TRF with regeneration; 2 AF stage(s); Reaction

• Tuned circuits
• 2 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 200; 220; 240 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Wooden case

• from Radiomuseum.org
• Model: A.C. "Paratune" - Wireless Constructor, The;

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Dimensions (WHD)
• 18 x 10 x 6.5 inch / 457 x 254 x 165 mm

• Notes

• 2 band radio receiver: LW (1000-2000 meter) and BC (225-550 meter). Continuous variable reaction circuit with a differential variable capacitor. 

  This kit radio was described in the February edition of the Wireless Constructor.

  The valves are listed as;
  1^st: A.C. Screen Grid Valve
  2^nd: A.C. High frequency valve
  3^rd: A.C. Low frequency valve

  All with 4 volt filaments. The user had to make his own selection of valves filling the requirements of the schematic.

   

• Price in first year of sale
• 17.75 UK£

• Literature/Schematics (1)
• The Wireless Constructor (February, 1931 Page 209)

• Author
• Model page created by Gary Cowans. See "Data change" for further contributors.

• Other Models

• Here you find 2 models, 1 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Wireless Constructor, The; Radio Press Ltd., London