• Country
• Finland

• Manufacturer / Brand
• Asa Radio Oy; Turku

• Year
• 1952

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 97882

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

• Number of Tubes
• 4

• Valves / Tubes
• DK92 DF91 DAF91 DL94

• Main principle
• Superheterodyne (common); ZF/IF 485 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Power type and voltage
• Line / Batteries (any type) / 127; 220 / 80 & 7,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 10 cm = 3.9 inch

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

• from Radiomuseum.org
• Model: Maestro 104M - Asa Radio Oy; Turku

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 315 x 270 x 140 mm / 12.4 x 10.6 x 5.5 inch

• Notes
• A wire loop amtenna buried inside wooden walls of unit.

• Net weight (2.2 lb = 1 kg)
• 3.8 kg / 8 lb 5.9 oz (8.37 lb)

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

• Author
• Model page created by Lasse Nirhamo. See "Data change" for further contributors.

• Other Models

• Here you find 300 models, 220 with images and 127 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Asa Radio Oy; Turku