• Country
• Germany

• Manufacturer / Brand
• Stern-Radio Sonneberg, VEB, RFT; SONRA; -vorm.: EAK (Ostd.) - ex. AEG

• Year
• 1959/1960

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 220732

• Number of Tubes
• 6

• Valves / Tubes
• ECC85 ECH81 EF89 EABC80 EM80 EL84

• Number of Transistors

• Semiconductors
• Selengleichrichter

• Main principle
• Superheterodyne (common); ZF/IF 473/10700 kHz

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

• Wave bands
• Broadcast, Long Wave and FM or UHF.

• Power type and voltage
• Alternating Current supply (AC) / 110;220 Volt

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

• Power out
• 2 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Sonra Sekretär III 697/59WU [Holzgehäuse] - Stern-Radio Sonneberg, VEB,

• Shape
• Tablemodel with Push Buttons.

• Dimensions (WHD)
• 500 x 322 x 182 mm / 19.7 x 12.7 x 7.2 inch

• Notes

• Weiterentwicklung der erfolgreichen "Sekretär"- Reihe für Wechselstrom.
  Auch mit Bakelitgehäuse als Sekretär III 697/59WU [Bakelitgehäuse].

• Net weight (2.2 lb = 1 kg)
• 10 kg / 22 lb 0.4 oz (22.026 lb)

• Source of data
• -- Original prospect or advert

• Author
• Model page created by Wolfgang Eckardt. See "Data change" for further contributors.

• Other Models

• Here you find 385 models, 312 with images and 288 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Stern-Radio Sonneberg, VEB, RFT; SONRA; -vorm.: EAK (Ostd.) - ex. AEG