• Country
• Switzerland

• Manufacturer / Brand
• Sondyna AG; Zürich-Effretikon

• Year
• 1975 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 162735

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

• Number of Transistors
• 3

• Semiconductors
• BC149 BF245 BC149 AA119

• Main principle
• TRF with diode detector; 1 AF stage(s)

• Wave bands
• Long Wave and/or Very Low Frequency (VLF).

• Details
• Wired Wireless Receiver (RF!)

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

• Loudspeaker
• - For headphones or amp.

• from Radiomuseum.org
• Model: Kristall 6950 - Sondyna AG; Zürich-Effretikon

• Notes
• HF-Trägerfrequenz-Drahtfunkempfänger als Vorsatzgerät für Radio (Phonoeingang) oder NF-Verstärker.

• Literature/Schematics (1)
• -- Schematic

• Author
• Model page created by Walter Haring. 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