• Country
• Germany

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

• Year
• 1968–1974

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 123484

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

• Number of Transistors
• 10

• Semiconductors
• B30C400 BF194 BF255 BF194 BF195 BF195 BF195 BC158 BC148 AC186 AC187 BB117 AA119 AY104 ZF6,2

• Main principle
• Superheterodyne (common); ZF/IF 460 kHz; 3 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)     10 FM circuit(s)

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

• Power type and voltage
• Line / Batteries (any type)

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical / Ø 10 cm = 3.9 inch

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Alpha 2 RK501 [7 rot] - Siemens & Halske, -Schuckert

• Dimensions (WHD)
• 120 x 120 x 140 mm / 4.7 x 4.7 x 5.5 inch

• Notes
• Alpha 2 RK501 7 (rot), Design Bellini 1968.

• Net weight (2.2 lb = 1 kg)
• 1.3 kg / 2 lb 13.8 oz (2.863 lb)

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• Other Models

• Here you find 2522 models, 2119 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