• Country
• Switzerland

• Manufacturer / Brand
• Sondyna AG; Zürich-Effretikon

• Year
• 1966 ??

• Category
• Television Receiver (TV) or Monitor

• Radiomuseum.org ID
• 147983

• Main principle
• Superheterodyne (common)

• Power type and voltage
• Alternating Current supply (AC) / 220 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: 21SO281A/16 Ch= Philips AW53-88 78 - Sondyna AG; Zürich-Effretikon

• Shape
• Tablemodel with Push Buttons.

• Notes
• The model Sondyna 21SO281A/16 (from Philips) is a 21" Television set. The knobs are on the right hand side, the loudspeaker grill on the left hand side.

• External source of data
• Iwan Wyler, Neuchâtel

• Author
• Model page created by Ernst Erb. See "Data change" for further contributors.

• Other Models

• Here you find 177 models, 112 with images and 115 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sondyna AG; Zürich-Effretikon