• Country
• Switzerland

• Manufacturer / Brand
• Waltham S.A., Genf

• Year
• 1961

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 86468

• • Brand: Waltham

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

• Number of Transistors
• 7

• Semiconductors

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 3 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• Dry Batteries / 4 x 1,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6.5 cm = 2.6 inch

• Power out
• 0.16 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: WS-73S - Waltham S.A., Genf

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 176 x 92 x 46 mm / 6.9 x 3.6 x 1.8 inch

• Net weight (2.2 lb = 1 kg)
• 0.7 kg / 1 lb 8.7 oz (1.542 lb)

• Source of data
• -- Original-techn. papers.

• Author
• Model page created by Marc Gianella. See "Data change" for further contributors.

• Other Models

• Here you find 44 models, 42 with images and 13 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Waltham S.A., Genf