• Country
• Great Britain (UK)

• Manufacturer / Brand
• Cossor, A.C.; London

• Year
• 1957

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 148397

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

• Number of Transistors
• 4

• Semiconductors
• XA102 or. OC44 XA101 or. OC45 XA101 or. OC45 XA101 or. OC72

• Main principle
• Superheterodyne (common); ZF/IF 470 kHz; 2 AF stage(s); Reflex

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 9 Volt

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

• Power out
• 0.03 W (undistorted)

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: Traveller's Friend 561 - Cossor, A.C.; London

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 6 x 3.875 x 1.75 inch / 152 x 98 x 44 mm

• Notes
• Third transistor is in reflex mode, both IF & AF amplification. Transistor are Ediswan XA102 XA101 XA101 XA101 or alternativly Mullard OC44 OC45 OC45 OC72.

• Net weight (2.2 lb = 1 kg)
• 0.5 kg / 1 lb 1.6 oz (1.101 lb)

• Circuit diagram reference
• Radio and TV Servicing books (R&TVS) book

• Literature/Schematics (1)
• -- Schematic

• Author
• Model page created by Keith Staines. See "Data change" for further contributors.

• Other Models

• Here you find 323 models, 247 with images and 191 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Cossor, A.C.; London