• Country
• Switzerland

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

• Year
• 1937/1938

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 12301

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

• Number of Tubes
• 6

• Valves / Tubes
• CK1 CF3 CBC1 CL4 CY1 C8 or C9

• Main principle
• Superheterodyne (common); ZF/IF 128 kHz; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

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

• Power type and voltage
• AC/DC-set / 110-130; 200-225 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 21.5 cm = 8.5 inch

• Material
• Bakelite case

• from Radiomuseum.org
• Model: M43ZU mit Kurzwelle - Mediator; La Chaux-de-Fonds

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

• Dimensions (WHD)
• 505 x 315 x 185 mm / 19.9 x 12.4 x 7.3 inch

• Notes
• 3 Band reception:
  • LW: 720 - 2000 m.
  • BC: 198 - 585 m.
  • SW: 16,7 - 51 m.
  Tuning scale light bulbs type: 8080-07 (10V, 200mA).

  The selection of the mains voltage is done by exchanging the current regulator tube:

  • Type C9 for 110-130 Volt
  • Type C8 for 200-220 Volt
  No connectors for external loudspeaker or for pick-up ! 
  Output power: 3,5 Watt @ 220 Volt mains only.

  This model is comparable with NSF_Aristona_H43U, SFR_Radiola_RA43U and Philips 461U or 461LU.

• Price in first year of sale
• 320.00 SFr

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

• Source of data
• -- Original prospect or advert / Radiokatalog Band 2, Ernst Erb

• Literature/Schematics (1)
• -- Original-techn. papers. (Generic model 43U by Philips dated 1937)

• 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