• Country
• Great Britain (UK)

• Manufacturer / Brand
• Invicta Radio Ltd.; Cambridge, London

• Year
• 1940

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 104920

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

• Number of Tubes
• 5

• Valves / Tubes
• ECH3 EF9 EBC3 EL2 CY1

• Main principle
• Superheterodyne (common); ZF/IF 467 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

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

• Power type and voltage
• AC/DC-set / 200-240; 250 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Piccaninny 820 - Invicta Radio Ltd.; Cambridge,

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Notes

• Released February 1940. Optional 50 Ohms ballast resistor is required for 250V. The bulk of the Ballast resistor is an external "line cord" of about 880 Ohms.

  WARNING: Assume chassis is live.

  Price may have excluded purchase tax.

• Price in first year of sale
• 6.50 GBP

• Mentioned in
• -- Original-techn. papers.

• Literature/Schematics (1)
• Trader Service Sheet (suppl. of Wireless & El. Trader, etc.) (705)

• Author
• Model page created by Peter Hoddow. See "Data change" for further contributors.

• Other Models

• Here you find 117 models, 68 with images and 82 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Invicta Radio Ltd.; Cambridge, London