• Country
• Denmark

• Manufacturer / Brand
• Linnet & Laursen (LL) A/S; København

• Year
• 1954 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 196279

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

• Number of Tubes
• 7

• Valves / Tubes
• UCC85 UCH81 UF80 UABC80 UM4 UAF42 UL41

• Number of Transistors

• Semiconductors
• OA56 E220C120

• Main principle
• Superheterodyne (common)

• Tuned circuits
• 6 AM circuit(s)     9 FM circuit(s)

• Wave bands
• Broadcast, (BC) Long Wave (LW), 2 x SW and FM or UHF.

• Power type and voltage
• AC/DC-set / 220 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Monark FM-AM 551 - Linnet & Laursen LL A/S;

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 580 x 370 x 290 mm / 22.8 x 14.6 x 11.4 inch

• Notes

• Two rotatable ferrite rod antennas.

  The Germanium diode OA56 acts as a noise limiter in the primary circuit of the ratio detector bandfilter.

• Literature/Schematics (1)
• -- Original-techn. papers.

• Author
• Model page created by Aglef Tröger. See "Data change" for further contributors.

• Other Models

• Here you find 71 models, 67 with images and 45 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Linnet & Laursen (LL) A/S; København