• Country
• Switzerland

• Manufacturer / Brand
• Mediator; La Chaux-de-Fonds

• Year
• 1937/1938

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 12303

• Number of Tubes
• 6

• Valves / Tubes
• EK2 EF5 EBC3 EBL1 EM1 AZ1

• Main principle
• Superheterodyne (common); ZF/IF 128 kHz

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

• Power type and voltage
• AC/DC-set

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 20 cm = 7.9 inch

• Power out
• 3.5 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: M57U - Mediator; La Chaux-de-Fonds

• Shape
• Tablemodel, low profile (big size).

• Notes

• Wellenbereichangabe durch Lichtzeiger auf Skala

  Wie Mediator M75A mit eingebautem Wechselrichter 7881C für den Gleichstrombetrieb.

• Price in first year of sale
• 395.00 SFr

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

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

• Other Models

• Here you find 371 models, 325 with images and 225 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Mediator; La Chaux-de-Fonds