• Country
• Germany

• Manufacturer / Brand
• Siemens (& Halske, -Schuckert Werke SSW, Electrogeräte); Berlin, München

• Year
• 1985 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 280138

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• PLL, Phase-locked loop

• Wave bands
• Broadcast (BC) and FM or UHF.

• Power type and voltage
• Dry Batteries / 2 x 1,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 2 cm = 0.8 inch

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: FM-Stereo/MW Receiver RT648-G4 - Siemens & Halske, -Schuckert

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

• Dimensions (WHD)
• 65 x 111 x 28 mm / 2.6 x 4.4 x 1.1 inch

• Net weight (2.2 lb = 1 kg)
• 0.098 kg / 0 lb 3.5 oz (0.216 lb)

• Author
• Model page created by Roland Müller. See "Data change" for further contributors.

• Other Models

• Here you find 2521 models, 2118 with images and 1334 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Siemens (& Halske, -Schuckert Werke SSW, Electrogeräte); Berlin, München