• Country
• Austria

• Manufacturer / Brand
• ÖTAG; Österreichische Telefonfabriks-AG, vorm. J. Berliner; Wien

• Year
• 1928/1929

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 10040

• • alternative name: Österreichische Telephonfabriks-AG
  • Brand: Berliner

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

• Number of Tubes
• 5

• Valves / Tubes
• RE084 RE084 RES044 RE074 RE134

• Main principle
• Superheterodyne (common)

• Tuned circuits
• 5 AM circuit(s)

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

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Wooden case

• from Radiomuseum.org
• Model: Ultradyne 77500 - ÖTAG; Österreichische

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Dimensions (WHD)
• 605 x 270 x 230 mm / 23.8 x 10.6 x 9.1 inch

• Notes
• auch Bausatz

• Net weight (2.2 lb = 1 kg)
• 9 kg / 19 lb 13.2 oz (19.824 lb)

• Price in first year of sale
• 360.00 öS

• External source of data
• E. Erb 3-907007-36-0

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Museums Bote, Österr. (Heft 25/1991, S.2, erwähnt in Firmengeschichte)

• Picture reference
• Das Modell ist im «Radiokatalog» (Erb) abgebildet.

• Other Models

• Here you find 99 models, 62 with images and 17 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from ÖTAG; Österreichische Telefonfabriks-AG, vorm. J. Berliner; Wien