• Country
• Netherlands

• Manufacturer / Brand
• Siera; Eindhoven (NL)

• Year
• 1946

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 277417

• Number of Tubes
• 4

• Valves / Tubes
• UCH21 UCH21 UBL21 UY1N

• Main principle
• Superheterodyne (common); 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

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

• Power type and voltage
• AC/DC-set / 110-240 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 13 cm = 5.1 inch

• Material
• Bakelite case

• from Radiomuseum.org
• Model: S56U -19 - Siera; Eindhoven NL

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

• Dimensions (WHD)
• 210 x 170 x 140 mm / 8.3 x 6.7 x 5.5 inch

• Notes
• Tuning scale light bulb type: Z10 neon.
  Loudspeaker Philips type 9668. No connectors for second loudspeaker or pick-up. 

• Net weight (2.2 lb = 1 kg)
• 2.7 kg / 5 lb 15.2 oz (5.947 lb)

• Author
• Model page created by Dirk Bladt. See "Data change" for further contributors.

• Other Models

• Here you find 50 models, 46 with images and 19 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Siera; Eindhoven (NL)